Onder andere met: Robert Forster (David Madison), Robin Riker (Marisa Kendall), Michael V. Gazzo (Chief Clark (as Michael Gazzo)), Dean Jagger (Slade), Sydney Lassick (Luke Gutchel (as Sidney Lassick)), Jack Carter (Mayor), Perry Lang (Officer Jim Kelly), Henry Silva (Col. Brock), Bart Braverman (Thomas Kemp (reporter)), John Lisbon Wood (Mad bomber), James Ingersoll (Arthur Helms), Robert Doyle (Bill Kendall), Patti Jerome (Mrs. Madeline Kendall), Angel Tompkins (Newswoman), Sue Lyon (ABC Newswoman)