James Farentino

Kevin Leahy

Claudette Nevins

Ellen Sumner

Eugene Roche

Sgt. Taplinger

Harrison Ford

Paul Winjam

Ann Dusenberry

Weezie Sumner

Diana Scarwid

Lane

Joan Hackett

Louise Gelson

Dinah Manoff

Celia

Carol Jones

Alex

P. J. Soles

Marty

Ethelinn Block

Barry

Susan Walden

Student

Lawrence Bame

James R. Parkes

Catherine Cunneff

Stephanie Barton-Farcas

Biology Student (uncredited)