Young Sheldon Wrote Jim Parsons A Scene With Lance Barber's George Sr. — Here's Why The Father-Son Reunion Was Never Filmed

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Jim Parsons nearly reprised his "Big Bang Theory" role on camera years before the "Young Sheldon" series finale, in a scene that would have brought Adult Sheldon face-to-face with his late father.

In the newly published oral history "Young Sheldon: The (Juicier-Than-Meemaw's-Brisket) Inside Story of the Hit Comedy" by Jessica Radloff, Parsons and the producers reveal that he was approached about appearing opposite Lance Barber's George Sr. in the Season 4 episode "A Black Hole." Though intrigued by the proposed scene, Parsons ultimately declined, explaining that he wasn't ready to revisit his "Big Bang Theory" character on camera.

In the penultimate Season 4 episode of "Young Sheldon," the Coopers discuss black holes and alternate universes over dinner with Dr. Sturgis. Among the imagined possibilities: Sheldon and Missy swap personalities, George becomes a pastor, Mary embraces her sinful side, and Georgie loses his luscious locks.

For the writers, the premise also presented an opportunity to bring Sheldon and his father together across time — or, as co-creator Steve Molaro puts it in the book, a "rare chance for Adult Sheldon to speak to his deceased father in a tangible way. I remember spending a lot of time on the scene. I knew Jim had conflicted feelings about ever playing Sheldon again on camera, so if he was really going to consider doing it the scene had to resonate."

The never-before-seen script pages, reproduced in Radloff's book, reveal Adult Sheldon entering the Cooper family's den, where George Sr. was watching television. After sitting in his usual spot, Sheldon would have filled his dad in on everything he'd missed: his Nobel Prize, his marriage to Amy, and their two children. And their conversation would have taken an even more poignant turn once Sheldon admitted that he struggled to relate to his son, Leonard, whose interests included sports.

"I know I wasn't perfect," George would have told him.

"I'm starting to realize I'm not either," Sheldon would have replied, before adding, "I think about you a lot."

The scene would have ended with George saying, "I wish I could've been around longer for you."

"Me too," Sheldon would have answered.

The version of the episode that ultimately aired still delivered an emotional father-son moment: Adult Sheldon's narration acknowledged George's death as he reflected on the things he wished he'd told his father. On screen, Young Sheldon expressed his appreciation for their conversation at dinner, earning a smile from his dad.

"We often regret the things we don't say," Parsons' narrator reflected. "There's a lot of things I wish I said to my dad while he was around. That I appreciated him. That I loved him. Which is why I'm grateful for the times I did tell him how I felt."

Though Parsons continued to narrate "Young Sheldon," he wasn't ready to play Sheldon on camera again so soon after "The Big Bang Theory" ended.

"Not because I didn't like him or like playing it, but it just felt wrong to me, somehow, in my heart after those 12 years, and after the finale of that show, and all of us finishing it together," Parsons explains in the book. "Maybe that sounds overly precious, but I was really following my heart."

Executive producer Steve Holland recalls that Parsons' initial response was positive: "He thought the scene was beautiful, and he was definitely interested in being a part of it." And that made the eventual pass harder to take: "We also didn't get a 'no' right off the bat from him. If we would have, it almost would have been easier... because we got so close."

The invitation to return for the series finale, three years later, ultimately felt different for Parsons: "It was a very big moment in something I was personally part of creating or in the beginning stages of. Because of that, if I was ever going to put on those clothes again, it would be a moment like that. And in fact, it even made me feel like, this is the final time I'm ever going to do it, because this is a beautiful coda on the end of a journey I got to go on. Now I just get to come back and give one last look from a different angle and really say goodbye one more time. That felt right. "

Barber, who learned about the proposed scene during his interview for the book, respects Parsons' decision, having wrestled with similar concerns about reprising George Sr. on the "Young Sheldon" spin-off, "Georgie & Mandy's First Marriage."

"It's a similar thought process," he says. "As an actor, I totally respect the consideration of your legacy for the character and the pitfalls of revisiting it, and cheapening it in any way."

Still, Holland wishes viewers could have seen the scene they had planned for Parsons and Barber.

"It wasn't just an older Sheldon; it was Jim as Adult Sheldon, actually getting to spend a few more minutes with his dad," he says, his voice breaking, according to the book. "And, yeah... it was really special to us."