Bob Newhart Returns To 'The Big Bang Theory' As Professor Proton: Behind The Scenes

As the iconic series The Big Bang Theory enters its final season, fans are in for a nostalgic treat. It's the perfect time to bring back some beloved characters, and who better to return than the legendary Professor Proton? Played by the incomparable Bob Newhart, this character reappears not in person but through the vivid imagination of Sheldon Cooper, portrayed by Jim Parsons. This season, Professor Proton steps in as Sheldon's go-to advisor, lending his wisdom during life’s tricky moments.

Let me tell you, at 89 years old, Bob Newhart is still as sharp as ever. In an interview with Entertainment Tonight, he shared some insights into his character's role this season. "When Jim has a problem," Newhart explains with a chuckle, "he comes to me. Recently, Jim and Amy had a disagreement, and guess who Sheldon turned to for advice? That's right—me! It's my job to help Sheldon navigate through his first marital spat with Amy." Newhart's wit and charm make these scenes both hilarious and heartwarming.

In the same interview, Jim Parsons chimed in, adding a humorous twist to the situation. "Bob's back to offer advice because when you're dealing with marital problems," Parsons says with a grin, "you go to Bob Newhart dressed in Jedi robes. It's just who you call!" This playful banter between the two actors highlights the camaraderie and mutual respect they share both on and off-screen.

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Bob Newhart's Stint on 'The Big Bang Theory'

Bob Newhart's journey with The Big Bang Theory began when series co-creator Chuck Lorre approached him. In an interview with the Television Academy, Newhart revealed that he had a few conditions before agreeing to join the show. "I told Chuck I loved the writing on the show and admired the incredible cast," Newhart recalls. "But I wanted more than just a one-off appearance. We initially agreed on three episodes, which turned into four, and it's grown from there." Newhart’s decision to join the cast was not just about the role but also about the experience of performing live. "I insisted it had to be filmed in front of a live audience," he adds. "Chuck agreed, and it's been pure joy ever since. Even though I may not have my fastball anymore, I’ve got a pretty good changeup. I still have it, and I wanted to keep working."

Episode Spotlight: "The Planetarium Collision"

Here’s a sneak peek at what CBS has to say about the episode titled “The Planetarium Collision,” airing on Thursday, October 18. "When Amy doesn't have the time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available to work with him—even if it means accidentally sabotaging her career in the process. Meanwhile, Koothrappali is not thrilled about Wolowitz joining him to host a show at the planetarium." Clearly, Sheldon's "great lengths" lead to another memorable encounter with Professor Proton (aka Arthur Jeffries). Fans can expect another hilarious and thought-provoking episode filled with the trademark humor and heart of The Big Bang Theory.