Paul Giamatti
Harvey Pekar
Hope Davis
Joyce Brabner
Judah Friedlander
Toby Radloff
James Urbaniak
Robert Crumb
Earl Billings
Mr. Boats
James McCaffrey
Fred
Maggie Moore
Alice Quinn
Vivienne Benesch
Lana
Daniel Tay
Young Harvey
Harvey Pekar
Real Harvey
Donal Logue
Stage Actor Harvey
Josh Hutcherson
Robin
Molly Shannon
Stage Actor Joyce
Toby Radloff
Himself
Madylin Sweeten
Danielle
Ebon Moss-Bachrach
MTV Director
Rae Sunshine Lee
Cashier
Joyce Brabner
Herself
Eytan Mirsky
The Guitarist
Joey Krajcar
Batman
Chris Ambrose
Superman
Cameron Carter
Green Lantern
Mary Faktor
Housewife
