Once the lovable nerdy engineer Howard Wolowitz on 'The Big Bang Theory,' Simon Helberg has undergone a stunning transformation that would leave fans doing a double-take. Gone is the iconic bowl cut and clean-shaven look that made him a household name!

At the recent AMC Networks Upfront in New York on April 9, the 44-year-old actor debuted a strikingly different appearance. Ditching his former style, Helberg now rocks a sophisticated salt-and-pepper beard and longer, curly locks that showcase a more mature and refined persona.

Dressed to impress, he opted for a trendy denim blazer layered over a rust-colored button-down shirt, complete with a stylish brown striped tie. His choice of dark brown pants and chic beige suede loafers with blue laces added to his fashionable ensemble, making headlines and capturing attention.

But that's not all—Simon Helberg is set to make waves once again in the entertainment industry! As reported earlier this year, he has joined the cast of AMC+'s upcoming drama centered around Silicon Valley, which is yet to be titled. He'll embody a billionaire CEO and founder of an AI company navigating the wild and chaotic world of Silicon Valley, filled with eccentric cultures and fierce competition.

Beyond his tenure on 'The Big Bang Theory,' Helberg has also showcased his talents in the comedy series 'MADtv' and made memorable appearances in films like 'Old School,' 'Good Night, and Good Luck,' and 'Walk Hard: The Dewey Cox Story.' Keep an eye on this versatile actor as he continues to redefine his career!