Peter is a composer and a likable sad sack who's devastated when his girlfriend of five years, Sarah Marshall, the star of a cheesy CSI-style crime show, dumps him. He weeps, he rails, he mopes.

His most popular films include Forgetting Sarah Marshall (2008), I Love You, Man (2009) and Bad Teacher (2011). HIMYM Cast Had Fundraising Parties on Set After Co-Creator's Son Was Diagnosed with ...