
Randolph Mantooth
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.
- Known for
- Acting
- Born
- Sep 19, 1945
- Place of birth
- Sacramento, California, USA
- Gender
- Male
- Credits
- 54 as cast · 1 as crew
- Best known for
- Criminal Minds
- Date of death
- Jul 9, 2026
- Popularity
- 1.9

Killer Holiday
Detective Bodrogi2013

Bold Native
Richard Cranehill2010

Scream of the Bikini
Ambasador Cartwright2010

Sons of Anarchy
Charlie Horse2008

He Was a Quiet Man
Dr. Willis2007

Fire Serpent
Dutch Fallon2007

Price To Pay
Bert2006

Ghost Whisperer
2005

Criminal Minds
Patrick Gless2005

Agent Red
Admiral Edwards2000

Time Share
Ken Crandall2000
Where Are They Now?
Self1999

Enemy Action
Solonsky1999

Promised Land
Ben Camden1996

The City
1995

JAG
Ron Barret1995

ER
Policeman (uncredited)1994

Diagnosis: Murder
Mayor Bill Tremont1993

Walker, Texas Ranger
James Lee Crown1993

Before the Storm
Bing Tupper1991
Under Cover
Bing Tupper1991

Baywatch
1989

China Beach
1988

L.A. Law
Gil Tecowsky1986

Terror at London Bridge
Joe Netz1985

MacGyver
Earl Stringer1985

Scene of the Crime
1985

Murder, She Wrote
Raymond Two Crows1984

Aloha Paradise
1981

Detective School
1979

The Seekers
Abraham Kent1979

Vega$
1978

Battlestar Galactica
Michael1978

Dallas
Joe Don Ford1978

The Love Boat
Alan Billingsley1977

Operation Petticoat
Lt. Mike Bender1977

Testimony of Two Men
Father Frank McNulty1977

Charlie's Angels
Mark Williams1976

Emergency +4
Paramedic John Gage (voice)1973

Emergency!
John Gage1972

Emergency!
John Gage1972

The Bravos
2nd Lt. Lewis1972

Marriage: Year One
Dan1971

Owen Marshall: Counselor at Law
Keith Ryder1971

Vanished
Ensign1971

Sarge
Corporal Finch1971

Alias Smith and Jones
1971

Night Gallery
Elkins (segment "Class of '99")1970

The Bold Ones: The Senator
Lt. Tony Caffey1970

McCloud
1970

Marcus Welby, M.D.
Intern1969

Adam-12
John Gage1968

One Life to Live
1968

The Virginian
Lt. Dorn1962