Jason Jordan Segel ( SEE-gal; born January 18, 1980) is an American actor, screenwriter and producer. He is best known for his role as Marshall Eriksen in the CBS sitcom How I Met Your Mother from 2005 to 2014. He began his career with director and producer Judd Apatow on the television series Freaks and Geeks (1999–2000) and Undeclared...