Guest Stars Michael Baseleon as Roy Twain Richard O'Brien as Joe Montgomery Laurie Prange as Chris Longacre Mark Jenkins as Ralph Hugh Alcott Co Starring John Carter as Lt. John Biddle Than Wyenn as "The Professor" Erik Holland as Leo Gully Deborah White as Kathy Rondel Don Dubbins as Bill Hummel Jean Gillespie as Nora Longacre Robert Patten as Martin Longacre John Yates as Artie Moss Betty Anne Rees as Sherry McLeod Frank Downing as Bob Dyer