John Cazale
as Stan
Teri Garr
as Amy Fredericks
Frederic Forrest
as Mark
Allen Garfield
as William P. "Bernie" Moran
Mark Wheeler
as Receptionist
Michael Higgins
as Paul
Cindy Williams
as Ann
Robert Shields
as The Mime
Phoebe Alexander
as Lurleen
Haider Zafar
as Al
Daniella Down
as Ellie
Anna Brophy
as Jodie
Michael Keane
as Lad
Eddie Bagayawa
as Aaron
Llila Vis
as Kaz
Nitin Parasher
as Kam