Georg Stanford Brown as Charles Neville

Raymond Burr as The Mayor

David Cassidy as David Greeley

Robert Culp as Frank McGuire

Clifton Davis as Arnold Clements

George DiCenzo as Cliff Barrankos

Gary Frank as Ron Farrell

Don Meredith as Capt. Donald Wiacek

Linda Purl as Brenda Farrell

Shelley Smith as Judy Agretti

Vic Tayback as Morris Brustein

Dick Anthony Williams as Jim Downs

Stuart K. Robinson as Douglas King

Grand L. Bush as Herbert Lee

Tom Rosqui as Tom Burnham

J. Jay Saunders as Chet Springfield

Laura Campbell as Joyce Hedison

Donald Hotton as George Martinson

Peter Nyberg as Gilbert Farrow

Jonathan Frakes as Richard Hawkins

Taurean Blacque as Oscar

Anne Sward as Christine Reynolds

Richard Roat as John Reynolds

Joan Tompkins as Woman Doctor

Mark Thomas as Young Man in Elevator

Christina Hart as Young Woman in Elevator

Daniel Faraldo as Camera Store Looter

Chip Fields as Yvonne Clements

Ketty Lester as Mrs. King

Eric Server as Cal Harmon

Jason Bernard as Dale Wrightson

Gary Veney as Freddie

Bobby Ellerbee as Rollie

John Brandon as George Carmody

Matthew Faison as Dwight Nance

Robert Lee Jarvis as Police Officer