We don't have a summary for Season 4 yet. Hang in there, or go ahead and contribute one.
Season Main Cast
Seth MacFarlane
voices Stan Smith
Seth MacFarlane
voices Roger
Scott Grimes
voices Steve Smith
Rachael MacFarlane
voices Hayley Smith
Dee Bradley Baker
voices Klaus Heissler
Wendy Schaal
voices Francine Smith
Jeff Fischer
voices Jeff Fischer Smith