15 Best Law & Order: SVU Guest Stars, Ranked

When you think of "Law & Order: Special Victims Unit," Mariska Hargitay and Christopher Meloni are probably the first names that come to mind, but over the years, the hit procedural has featured several impressive guest stars. Considering the pedigree of "SVU," which has earned a plethora of accolades (including six Emmy wins), it shouldn't come as any surprise that everyone from established Hollywood A-listers to rising stars looking for their big break have been eager to play in this sandbox.

Guest stars aren't relegated to only playing the criminals. "SVU" can offer a wide range of compelling roles, including victims and lawyers, that allow actors to showcase their full range. In one episode, you'll see a familiar face who wants to play against type; in the next, there will be a now-famous actor who was still cutting their teeth in the industry at the time.

If you've already watched the best "SVU" episodes of all time and are looking for another way to browse through the library, look no further. These are the 15 best "SVU" guest stars, ranked by how captivating their performances are and their impact on the episode.

Before winning an Academy Award, becoming the highest-grossing actor of all time, and starring in Taylor Sheridan's "Lioness," Zoe Saldaña turned heads on a Season 5 "SVU" episode called "Criminal," about the rape and murder of a university student named Rebecca Wheeler.

Saldaña plays Gabrielle Vega, the daughter of primary suspect Javier Vega (James McDaniel), a college professor and Wheeler's advisor. Gabrielle supports her father, especially given his history of drug addiction and incarceration that he's trying to move past. As such, she accuses the Special Victims Unit, and especially Captain Donald Cragen (Dann Florek), of bias.

From Gabrielle's first interview with the police to her emotionally charged reckoning with her father's fate, Saldaña presents vulnerability and strength in equal measure. It's a well-calibrated performance that radiates energy; you can feel Gabrielle fight against her anger in an attempt to maintain professionalism, and the result is magnetic. And when Javier's circumstances turn dire, Saldaña changes the tenor of her performance, giving the guest spot a nattily complete arc.

Emmy-winning actor Laverne Cox only appears momentarily in the Season 9 episode "Closet," but she makes an immediate impression, especially since this aired five years before her breakthrough role in "Orange Is the New Black," a great Netflix show nobody talks about anymore. 

When Stabler (Christopher Meloni) and Benson (Mariska Hargitay) visit a gym to investigate the murder of a gay investment banker, they're greeted by manager Candayce, played indelibly by Cox. Now, "SVU" is generally a grim show, but Cox immediately lightens the proceedings with charisma and humor, nearly immediately hitting on Stabler. Can you blame her?

Candayce goes on to give information about a potential suspect, seeming all too eager to rat out her employee, whom she calls a "little devil" with "sticky fingers." These kinds of interview scenes can feel perfunctory, mere exposition dumps to get to the next lead, but Cox is incapable of giving an unlively performance. Even in this one scene, you can tell she's a star who elevates whatever she's in.

Appearing on the "SVU" Season 13 episode "Spiraling Down" might have felt a little familiar for Treat Williams, a sincere actor who broke through with the corrupt cop drama "Prince of the City." This time, however, he finds himself on the other side of the law, resulting in one of the series' all-time great witness stand performances.

Williams plays former football player Jake Stanton, a beloved quarterback who gets accused of soliciting a minor for sex, seemingly caught in the act in a sting operation. The case isn't open and shut, however, as it slowly becomes clear that Stanton's mental capacity has declined thanks to chronic traumatic encephalopathy, or CTE, a common brain disorder among ex-football players. Can he be found guilty for something he didn't know he was doing? Or are he and his wife (Beth Chamberlin) too concerned with his legacy to be completely honest?

It must be difficult to portray the effects of a traumatic brain injury on screen, especially ones involving memory loss or dementia. Williams is more than up to the task, however, giving his performance a pathetic yet horrifying sense of authenticity. And when TV crime drama veteran Andre Braugher questions him on the stand, fireworks ensue.

The versatile, Emmy-winning actor Amanda Seyfried (who won for "The Dropout," one of the best miniseries of the 2020s so far) had a big 2004. She broke through on the big screen as hilarious airhead Karen Smith in "Mean Girls," and she had a powerful guest role in the "SVU" Season 6 episode "Outcry." If you didn't already think Seyfried could do it all, check out these two performances, as tonally far apart as possible, and see for yourself.

In "Outcry," she plays Tandi McCain, the victim of rape who finds an unorthodox path to justice. First, Tandi believes three Army cadet students were the attackers. Then, Stabler believes it's Tandi's stepfather, Ronald (Michael O'Keefe), who's guilty of the heinous crime. The final outcome is the result of a few more twists and turns, giving Seyfried many intentions, layers, and motivations to play with.

It's a complicated performance, one that may have swallowed an inferior actor in the rigamarole of its writing. But Seyfried is in a caliber of her own, giving the young woman dignity, terror, and a downright inspiring final moment amid the darkness of "SVU."

French film icon Isabelle Huppert starred in the "SVU" Season 11 episode "Shattered." Huppert received an Academy Award nomination for the 2016 film "Elle," a complicated thriller full of pulpy turns, committed performances, and unflinching depictions of sexual violence. As it turns out, her aforementioned "SVU" episode might have been a great trial run.

In it, Huppert plays Dr. Sophie Gerard, an unstable woman struggling with the kidnapping of her son (Jake Miller) and her volatile relationship with the boy's father (D.W. Moffett). When Sophie tries to take matters into her own hands, things escalate quickly, resulting in violence, emotional manipulation, and self-destruction.

It's one of the most action-packed episodes of the entire series run, a go-for-broke entry that requires a level of commitment at its center to avoid it from becoming pure camp. Thankfully, Huppert is that central performer, and while her style does sometimes veer into the theatrical, it's with intention and understanding. She's the lightning bolt of the thunderstorm that is "Shattered," and you can't keep your eyes off her.

Best known for his Emmy-winning role of the pratfall-prone ne'er-do-well Jack Tripper on the beloved sitcom "Three's Company" (a '70s TV show that couldn't be made today), John Ritter played aggressively against type in the "SVU" Season 3 episode "Monogamy." As the Hollywood saying goes, Ginger Rogers had to do everything Fred Astaire did "backwards and in high heels." Something similar could be said about comic actors, who need to display dramatic chops to carry credible narratives while also making us laugh. Here, Ritter shows what a strong foundation he's always had.

Ritter's Dr. Richard Manning presents a calm exterior, one that breaks upon discovery of his wife (Tricia Paoluccio) having an affair with a construction worker (another great guest star, Bobby Cannavale). As such, Dr. Manning is convinced his wife's child is not biologically his, leading to a devastating act of revenge and violence.

When Dr. Manning finally comes to accept the truth of his circumstances, Ritter plays it with such understatement. You feel him erode from the inside out, and it's a devastating, intelligent piece of screen acting.

Season 7 episode "Influence" features a guest role from "Walking Dead" breakout Norman Reedus. But it's Brittany Snow, the star of the sexy Netflix hit "Hunting Wives," who walks away with the episode, taking a frankly difficult, arguably overwritten role and guiding the audience through every beat naturally and effectively.

Snow plays high school student Jamie Hoskins, who starts the episode falsely accusing classmates of rape and ends it convicted of vehicular manslaughter. In between, she goes off her bipolar medication, rams a car into a crowd (hence the conviction), and falls under the influence of a charming but problematic rock star (Reedus, natch).

That's a lot to play, even for "SVU" standards. In Snow's hands, though, it feels not just natural but understandable. Her depiction of a young woman suffering a mental breakdown feels authentically upsetting, and her sliding in and out of lucidity is heartbreaking to see. You want to reach through the screen and help her, a sincere sign of a performer who knows what she's doing.

While Bradley Cooper is now known as a serious actor-filmmaker responsible for prestige pictures such as "Maestro," he broke through as a rakish comedic performer in roles like "The Hangover" (not to mention as a fictionalized version of Anthony Bourdain on TV). In this "SVU"/"Trial By Jury" crossover episode, Season 6's "Night," Cooper threads the needle, giving the episode punky charisma while honoring its need to delve into darker territory.

Cooper plays real estate attorney Jason Whitaker, who's introduced as the epitome of sleaze. But the actor doesn't play it to the cheap seats; his take on the lawyer feels lived-in and nuanced, painting the visage of a guy you feel like you've met before.

When Whitaker signs on as the defense attorney of accused rapist and murderer Gabriel Duvall (another great guest star, Alfred Molina), you feel Cooper turn up the heat, playing less as a dummy in over his head and more as a smart cookie who can weaponize his scumminess. Even with Molina and other guest stars like Angela Lansbury and Rita Moreno, Cooper sticks out as the most memorable star of the episode.

TV icon Scott Foley centered the Season 11 episode "Hammered" to devastating effect. His character goes through a horrific ordeal, and Foley especially plays the shocking conclusion with rawness.

Dalton Rindell (Foley) is a recovering alcoholic who relapses, blacks out, and wakes up next to a dead body. The deceased was raped and murdered, and Dalton is of course the prime suspect. As the Special Victims Unit further investigates the case, complications ensue regarding the burden of proof, the failing memory of the accused, and the nagging possibility that someone else is to blame.

Foley is an inherently earnest and vulnerable performer, his eyes and everyman attitude guiding the audience through all kinds of material. These qualities make him an ideal actor for the role, since we're desperate to believe or at least help a man struggling with addiction despite (or even because of) his alleged, despicable crimes.

And without spoiling anything, his final scene with Benson makes for one of the great "SVU" denouements, one that Foley imbues with regret, rage, and everything in between.

Sitcom legend Henry Winkler, the shark-jumping Fonz himself, is downright sinister in the "SVU" Season 3 episode "Greed." He embodies the titular subject well, and by the episode's end, you'll want to hurl whatever's near you at the screen in the best way possible.

Winkler plays Edwin Todd — at least, that's how he's introduced to us. He's the husband of Jessica Blaine (Mary Beth Hurt), the victim of an attempted rape and murder. At first, Edwin feels like a loving and supportive partner to his poor spouse, answering the detectives' questions kindly and thoroughly. But as the investigation keeps uncovering some unlikable, downright shady truths surrounding Edwin, it's clear a conspiracy is afoot.

The details of this conspiracy are harrowing and arguably evil. Winkler doesn't shy away from these circumstances, but he doesn't come across as a mustache-twirling villain. Instead, he doubles down on his superficial charm, which helps his audience realize how sociopathic and empty he is at the center. It's a fearlessly unaffected performance, which makes it quite effective.

Emmy and Tony winner Martin Short isn't just a comedic actor. He's a downright vaudevillian comedy powerhouse, a performer who, at his most unfiltered, will do anything for a laugh in the best way possible. Thus, Season 6's "Pure" is quite the shocking watch, as Short subdues all of this inherent joy and whimsy to depict a manipulative, monstrous figure. Is it a stunt cast? Maybe, but it's hard to care when Short's work is this good.

He plays Sebastian Ballentine, a self-proclaimed psychic who promises to use his special powers to help the Special Victims Unit solve the rape and kidnapping of young Kaley Sellers (Molly Bea Spears). Stabler is, understandably, skeptical to the point of agitation by Sebastian, whom Short grants just enough showmanship to make him believably manipulative.

Ultimately, Sebastian is not who he says he is, and the episode's revelations are intensely grim even for "SVU." Short, thus, has to perform some vicious acts on camera, and this total submersion is beyond upsetting to watch.

Season 6 episode "Birthright" originally aired on NBC in September 2004, when Abigail Breslin was just 8 years old. Even at this age, she gave an astonishing performance, one with a more naturalistic and selfless style than many of the professional, grown-up performers on this list. And, she was doing this caliber of work on a few shows of that time; she was one of the major movie stars who appeared on "NCIS" and "Grey's Anatomy."

The cold open finds Breslin's character, Patty Branson, suffering an attempted kidnapping, with the would-be captor clawing off a chunk of her hair. This disgusting action triggers a series of revelations that will rock the Branson family to its core, especially thanks to the appearance of the unstable Michelle Osborne (Lea Thompson, also doing great guest work).

In this role, Breslin must often be disturbed and hysterical to the point of tears. It's probable you've seen child actors in this kind of story do that kind of work before, even on this very show. But Breslin finds another level of authenticity. It doesn't feel like she's acting; it feels like her character is living through Hell, and it's escaping out of her however it can. It's raw, uncomfortable, and undeniably powerful.

The only EGOT winner on this list, Whoopi Goldberg can do it all, from drama to comedy to talk show hosting and everything in between. In her work on the Season 17 episode "Institutional Fail," she dials back her natural magnetism to offer a slice of a particularly hard life, pushing into righteous anger only when she needs to.

Goldberg plays Janette Grayson, a supervisor of an overworked child services office. One of her employees (John Magaro, another great guest star) rats her out when the Special Victims Unit discovers that some of his young clients are being neglected. Following this discovery, an unthinkable tragedy occurs, leading to an investigation of Grayson and her office that will change her life forever.

It's hard to imagine offering Goldberg's character any sympathy. Yet, she finds a way to turn the symbolic importance of the script (the idea that our social service workers are generally overburdened) into a personal, human ache.

In one jaw-dropping scene, where Rafael Barba (Raúl Esparza) questions Grayson on the witness stand, Goldberg delivers a monologue that will shake you to the core, kinetically walking the tightrope between sensibility and instability. It's somewhat of a crime that Goldberg didn't win an Emmy for this.

You might know Cynthia Nixon from her Emmy-winning role as Miranda on "Sex and the City," where she got to play one of the best pregnancy storylines in sitcom history. And in the Season 9 "SVU" episode "Alternate," Nixon notched herself another Emmy win playing the integral role of Janis Donovan. It's a startling performance with potential pitfalls weaker actors would fall into. Thankfully, Nixon is not a weak actor.

In the episode, Donovan, who's accused of hurting her daughter, has dissociative identity disorder. This means that during the course of the episode, she presents four other, seemingly independent personalities, at least one of whom is violent. But when Donovan's sister (Laura Allen) enters the picture, another vicious crime emerges, and so does the central truth about Donovan.

In depicting such a stigmatized illness as DID, Nixon runs the risk of exploitation, doubly so after a late-episode twist. But her work is so fully realized, especially considering she's effectively playing five different roles, that you feel in safe, confident hands. This is a tour de force for Nixon, and you can't tear your eyes away from her.

Our No. 1 spot goes to the major movie star Robin Williams. By the time his "SVU" episode, "Authority," aired in 2008, audiences had already seen the funnyman play many dramatic roles, winning an Oscar for one in "Good Will Hunting." Still, it's a special treat to watch him play such a devious man, one with shades of his stellar work in psychological thrillers "Insomnia" or "One Hour Photo."

Williams plays Merritt Rook, an audio engineer whose familial trauma motivates him to lead public and theatrical spectacles extolling the terrors of conformity. These displays test the boundaries of legality, especially one involving impersonating a police officer to make a random fast food employee strip (ripped from the headlines, per usual). But when Stabler and Benson suspect Rook of murder, his games become much more twisted, personal, and potentially deadly.

In Williams' hands, Rook has enough charisma to be able to influence the people he needs to make his grand points. But Williams smartly lives in a quieter register, even when the plotting gets louder. It's a bone-chilling performance, one of Williams' best and the best guest star on "SVU" so far.