Cambor studied at Deerfield Academy in Massachusetts and at Wesleyan University in Middletown, Connecticut, where he earned a BA degree in English in 2001. After further studies, Peter Cambor received an MFA from the American Repertory Theater's Institute for Advanced Theater Training at Harvard University, Cambridge, Massachusetts (MFA in Acting, 2005). After working for a while in New York, he moved to Los Angeles.
Cambor landed the lead as an expectant father on Notes from the Underbelly after the sitcom's creator had caught his performance in a Los Angeles production of The Cherry Orchard, opposite veteran actors Annette Bening and Alfred Molina. From 2006-2008, Cambor played the role of the expectant father, starring opposite Jennifer Westfeldt, in Notes from the Underbelly (on the ABC Television network).
Cambor appeared on the former ABC sitcom Notes from the Underbelly for two seasons. In 2012, he starred in the TBS series Wedding Band.
