<Tr> <Th> Gender </Th> <Td> none </Td> </Tr> <Tr> <Th> Occupation </Th> <Td> Various (depending on alias) </Td> </Tr> <P> Roger Smith (born Wogir) is a fictional character in the adult animated sitcom American Dad!, voiced by Seth MacFarlane . The character was created and designed by Seth MacFarlane . Roger is a centuries - old grey space alien living with the Smith family, around whom the show revolves . Having lived on Earth since crashing in Roswell, New Mexico in 1947, Roger came to live with the Smiths after rescuing main character Stan Smith at Area 51 four years prior to the beginning of the series . </P> <P> Roger began the series as a sensitive pushover who is often taken advantage of, cheated, and ridiculed . Over time, the character has become a textbook psychopath, exhibiting increasingly cruel, selfish, devious, and depraved behavior, although the Smith family are curiously oblivious to his nature despite being his most frequent victims . In early episodes of the show, Roger is disallowed from leaving the Smith house in order to conceal his being an alien . This restriction is soon abandoned and Roger begins adopting disguises and fictitious personas in order to have a life outside the house . </P>

Who does roger's voice on american dad