John Ritter as Steve Nichols

Anne Archer as J. Marsh

Bert Convy as Walter Reeves

Kevin McCarthy as Calvin Donnelly

Harry Bellaver as Eddie

Anita Dangler as Mrs. Havacheck

Jane Hallaren as Gloria Preston

Leonard Harris as Mayor

Rick Podell as Milo

Allan Rich as Marty Fields

Kurt Andon as Fireman

Gerry Black as Hero at Fire

Tony Cacciotti as Anthony Casselli

William Bogert as TV Moderator

Joyce Brothers as Self

Gerald Castillo as 2nd Hero at Fire

Natalie Cilona as Woman in Fire

Tony Crupi as Policeman

Heidi Gold as Secretary

Garry Goodrow as TV Reporter

Michael Gorrin as Mr. Rothberg

Rod Haase as Captain Avenger

Henrietta Jacobson as Mrs. Rothberg

Gary Klar as Cameraman

Michael Leon as Wilson

Andrew Masset as Jerry

Bryan O'Byrne as Scientist

James O'Connell as Stage Manager

Church Ortiz as Grocery Store Punk

William Robertson as Bum

Robin Sherwood as Lab. Assistant

Marley Sims as Denise

Joseph Stern as Assistant Director

Kenneth Tobey as Firechief Palmer

Larry Attebery as TV Commentator

Kevin Bacon as 2nd Teenager

Vanda Barra as Woman in Crowd

Neill Barry as 1st Teenager

Chris Borgen as TV Commentator

AJ Carothers as Stage Director

Gary Combs as Holdup Man

Rita Crafts as Woman in Crowd

Carol Martin as TV Newscaster

Lionel Pina as 3rd Teenager

Michael Prince as Dignitary

John Roland as Reporter

Marilyn Salenger as Reporter

Jack Somack as Waiter

Rolland Smith as TV Newscaster

Willy Stern as Johnny

Nancy Bleier as Commercial Star

Robert Carricart as Reporter

Frank Casey as Reporter

Tracey Cohn as Young Girl

Kenneth Cory as Man at Rally

Penny Crone as Reporter

Alberto Ferrara as Young Boy

Leonard P. Geer as 1st Thug

Tyler Horn as Commercial Star

Peter Iacangelo as Man at Rally

Jack Beers as Subway Passenger (uncredited)

Kenneth Boys as Mime (uncredited)

Matteo Cafiso as Boy at Party (uncredited)

Robert P. Fields as Young Fan (uncredited)

Marianne Muellerleile as Woman in Line (uncredited)

Gene Palma as Street Drummer (uncredited)