Janis Joplin

Herself (archive footage)

Cat Power

Narrator (voice)

D. A. Pennebaker

Himself

Dick Cavett

Himself

Peter Albin

Himself

Karleen Bennett

Herself - Janis Joplin's childhood friend

Laura Joplin

Herself - Janis Joplin's sister

Michael Joplin

Himself - Janis Joplin's brother