Zachary Levi began acting on stage at the age of six, acting, singing and dancing in school and local theater productions. After graduating from Buena High School, he headed to Los Angeles to pursue his dream of acting. Zachary began acting in theater, performing lead roles in regional productions such as Grease, The Outsiders, Oklahoma!, Oliver!, The Wizard of Oz, and Big River at the Ojai Art Center. He chose his middle name as his stage name because his agent told him that "a guy named Zach Pugh would not be going far in Hollywood".
Levi first appeared in the FX television movie Big Shot: Confessions of a Campus Bookie. He played Kipp Steadman on the ABC sitcom Less Than Perfect. He also portrayed a potential boyfriend of Charisma Carpenter's character, Jane, in the ABC Family television movie See Jane Date. Levi was slated to be a lead in an ABC pilot called Three for the 2004/2005 television season, but the show was not picked up.
He landed the starring role in Chuck in 2007. He later starred in the film Alvin and the Chipmunks: The Squeakquel in the lead role as Dave's cousin Toby Seville.
In January 2015, it was announced that Levi will be a lead member of the cast of NBC's 13-episode miniseries Heroes Reborn. He will also be guest-starring as Abraham Lincoln in the Hulu original series Deadbeat.
- See Jane Date (2003)
- The Division (TV Series)
- Big Momma's House 2 (2006)
- Less Than Perfect (TV Series)
- Chuck (TV Series)
- Chuck: Morgan's Vlog (TV Series)
- Alvin and the Chipmunks: The Squeakquel (2009)
- Video Game High School (TV Series)
- Tiny Commando (TV Mini-Series
- Above Average Presents (TV Series)
- Telenovela (TV Series)
- Alias Grace (TV Mini-Series)
- Tangled: The Series (TV Series)
- Office Uprising (2018)
- Shazam! (2019)