Chris Makepeace

Clifford Peache

Adam Baldwin

Ricky Linderman

Matt Dillon

Melvin Moody

Joan Cusack

Shelley

Dean Devlin

Boy

Ruth Gordon

Gramma

Martin Mull

Mr. L.C. Peache

John Houseman

Dobbs

Craig Richard Nelson

Griffith

Kathryn Grody

Ms. Jump

Marge Kotlisky

Mrs. Linderman

Tim Kazurinsky

Workman

Bruce Jarchow

Roberto

George Wendt

Engineer

Pat Billingsley

Biology Teacher

Jennifer Beals

Clifford's Friend (uncredited)

Sandra Bogan

Joan (uncredited)

Gary Houston

Drunk in the Park (uncredited)

Steven Rozic

Hotel Doorman (uncredited)