Seth MacFarlane is a creator.
Family Guy is an American adult animated sitcom created by Seth MacFarlane 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 ! In 2008 , he created his own YouTube series titled Seth MacFarlane 's Cavalcade of Cartoon Comedy . The Cleveland Show is an American adult animated sitcom created by Seth MacFarlane , Richard Appel , and Mike Henry for the Fox Broadcasting Company as a spin-off of Family Guy .