24x07 The Day the Earth Stood Cool

TV-PG

Dan Castellaneta

Homer Simpson, Abe Simpson, Barney Gumble, Krusty (voice)

Julie Kavner

Marge Simpson, Patty Bouvier, Selma Bouvier (voice)

Nancy Cartwright

Bart Simpson, Nelson Muntz, Ralph Wiggum (voice)

Yeardley Smith

Lisa Simpson (voice)

Hank Azaria

Moe Szyslak, Chief Wiggum, Apu, Comic Book Guy, Carl (voice)

Harry Shearer

Ned Flanders, Mr. Burns, Smithers, Skinner, Lenny (voice)

Carrie Brownstein

Colin Meloy

Patton Oswalt

T-Rex (voice), Bart's guilt (voice)

Marcia Wallace

Edna Krabappel (voice)

Fred Armisen

Terrence (voice)