

Cast & creator
Best known for Criminal Minds, JAG, Diagnosis: Murder
Randy DeRoy Mantooth (September 19, 1945 – July 9, 2026), known professionally as Randolph Mantooth, was an American actor who worked in television, documentaries, theater, and film for more than 50 years. A graduate of the American Academy of Dramatic Arts, he was discovered in New York by a Universal Studios talent agent while performing the lead in the play Philadelphia, Here I Come! After signing with Universal and moving back to California, he slowly built up his resume with work on such dramatic series as Adam-12 (1968); Marcus Welby, M.D. (1969); McCloud (1970), and Alias Smith and Jones (1971). Mantooth portrayed paramedic John Gage in the 1970s medical drama Emergency! and spoke regularly at Firefighter and EMS conferences and symposia across the United States while maintaining an active acting career. He was a spokesperson for both the International Association of Firefighters [IAFF] and the International Association of Fire Chiefs [IAFC] for firefighter health and safety, and was honored over the years with numerous awards and recognition. He appeared in numerous films and television series in lead and supportive roles including miniseries adaptations of Testimony of Two Men (1977) and a starring role as Abraham Kent in The Seekers (1979). Through the 1990s and 2000s, he appeared in daytime soap operas, earning him four Soap Opera Digest Award nominations. He frequently returned to performing in theatrical productions. He served as an associate artist at Jeff Daniels' Purple Rose Theatre. His performances include Mark Kaufman's Evil Little Thoughts, Black Elk Speaks, Carey Crim's Morning after Grace, Lanford Wilson's Rain Dance, and numerous works by Native American playwrights including William S. Yellow Robe Jr.
Also known as: Randolph Deroy Mantooth, Randy Mantooth
14
film credits
44
television credits
57
1962–2013 · acting roles
6.7
average across scored titles
Signature credits
Across film & television
Showing 58 of 58 credits

Patrick Gless
2005
Ron Barret
1995
Mayor Bill Tremont
1993
Randolph Mantooth
1993
Charlie Horse
2008
Earl Stringer
1985
Alan Billingsley
1977

Policeman (uncredited)
1994
Raymond Two Crows
1984
Joe Don Ford
1978
Gil Tecowsky
1986
John Gage
1968
Neil Williams
1968
Mark Williams
1976

Lt. Dorn
1962
John Gage
1972
Director
1972
James Lee Crown
1993
Intern
1969


Elkins (segment "Class of '99")
1970



Michael
1978
Keith Ryder
1971
Lonnie Roth
1971Self
1999
Ben Camden
1996


Corporal Finch
1971
Lt. Mike Bender
1977
Lt. Tony Caffey
1970
Abraham Kent
1979
Bing Tupper
1991

Father Frank McNulty
1977
Ensign
1971
Dr. Willis
2007
Joe Netz
1985
Paramedic John Gage (voice)
1973
Admiral Edwards
2000
Ambasador Cartwright
2010
Ken Crandall
2000
Dan
1971
Dutch Fallon
2007
Detective Bodrogi
2013
Richard Cranehill
2010
Solonsky
1999
2nd Lt. Lewis
1972
Bing Tupper
1991
John Gage
1972
Bert
2006