George McFly
Rocky
Mr. Marrow
Jay
Roy
Dr. Ball
Dr. Garonski
Mosley
Concert Audience Member (uncredited)
Voice Actor (uncredited)
Mr. Angr
Miles
Young Man
Harvey
Fairfax Jew
Bud
Teddy Conway
Cousin David (uncredited)
Abusive Doctor
Backstage Dancer
Stage Manager (uncredited)
The High Geek (uncredited)
Lucas
Self