Seth MacFarlane was one of the creators of the television series "American Dad!".
American Dad! . is an American adult animated sitcom created by Seth MacFarlane , Mike Barker , and Matt Weitzman for the Fox Broadcasting Company . Seth MacFarlane . MacFarlane is the creator of the TV series Family Guy ( 1999 -- 2003 , 2005 -- present ) , co-creator of the TV series American Dad !