Billy Crystal

Mitch Robbins

Daniel Stern

Phil Berquist

Jon Lovitz

Glen Robbins

Jack Palance

Duke Page

Patricia Wettig

Barbara Robbins

Pruitt Taylor Vince

Bud

Bill McKinney

Matt

Lindsay Crystal

Holly Robbins

Beth Grant

Lois

Noble Willingham

Clay Stone

David Paymer

Ira Shalowitz

Josh Mostel

Barry Shalowitz

Jayne Meadows

Mitch's Mother

Jennifer Crystal Foley

Jogger

Helen Siff

Shushing Lady

Mario Roberts

Clay's Son

Bob Balaban

Dr. Jeffrey Sanborn (uncredited)

William Shatner

Adam Harland (uncredited)