Rosanna Arquette

Jill Rosen

Vincent Spano

Albert 'Sheik' Capadilupo

Joanna Merlin

Mrs. Rosen

Jack Davidson

Dr. Rosen

Nick Ferrari

Mr. Capadilupo

Dolores Messina

Mrs. Capadilupo

Leora Dana

Miss Vernon, Teacher

Bill Raymond

Mr. Ripeppi, Teacher

Sam McMurray

Mr. McManus, Teacher

Liane Curtis

Jody, High School Girl

Claudia Sherman

Beth, High School Girl

Marta Kober

Debra, High School Girl

Tracy Pollan

Leslie, College Girl

Rachel Dretzin

Shelly, College Girl

Susan Derendorf

Chris, College Girl

Frank Vincent

Vinnie

Robin Johnson

Joann

Gary McCleery

Rat

Matthew Modine

Steve

John Ferraro

Plasky

Phillip Brock

Biff

Merel Poloway

Miss Katz

Donnie Kehr

Barry

Michael E. Knight

Phillip

Robert Downey Jr.

Stewart

Brian Wry

Georgie

Richard Kantor

Curtis

Stephanie Keyser

Laura

Julie Philips

Karen

Frank Zagarino

Lew

Art Halperin

Band Leader

Caroline Aaron

Waitress

Jonathan Gero

Jack

Susan Busset

Prom Singer

Steven Reed

Prom Singer

Stephen Donato

Prom Singer

Fisher Stevens

Stage Manager

Robin Geller

Tripper