Chuck

Zachary Levi plays Chuck Bartowski, the central character who becomes an unwitting government operative after a top-secret program is embedded into his brain.

Yvonne Strahovski portrays Sarah Walker, a CIA agent assigned to protect and handle Chuck with a complex personal connection to him.

Joshua Gomez is Morgan Grimes, Chuck's best friend who is initially unaware of Chuck's spy activities and later becomes involved in his espionage endeavors.

Adam Baldwin takes on the role of John Casey, a seasoned NSA agent assigned to watch over Chuck, known for his gruff demeanor and combat prowess.

Bonita Friedericy appears as Diane Beckman, a high-ranking NSA official who oversees Chuck's spy operations and frequently briefs his team on their missions.

Vik Sahay plays Lester Patel, one of Chuck's quirky colleagues at the Buy More electronics store and a member of the Nerd Herd.

Scott Krinsky is Jeff Barnes, Chuck's unconventional and eccentric co-worker at Buy More, often seen causing mischief alongside Lester.

Sarah Lancaster portrays Ellie Woodcomb, Chuck's loving and supportive older sister who is a doctor and often worries about Chuck's personal life and safety.

Julia Ling stars as Anna Wu, a stylish and assertive Nerd Herd employee at Buy More who has an on-again, off-again relationship with Morgan.

Mark Christopher Lawrence plays Big Mike, the imposing but good-hearted manager of the Buy More store where Chuck and his friends work.

Ryan McPartlin assumes the role of Devon Woodcomb, also known as 'Captain Awesome,' Ellie's husband and Chuck's brother-in-law, who is an accomplished surgeon and embodies an almost flawless persona.

Rachel Bilson plays Lou Palone, a romantic interest for Chuck who owns a local deli and has a short-lived relationship with him.