
Person
Gavan O'Herlihy
Acting · 1951–2021 · Dublin, Ireland
Biography
Gavan O’Herlihy (29 July 1951 – 15 September 2021) was an Irish actor whose career spanned film, television, and stage, marked by a distinctive presence and a talent for commanding roles. Born in Dublin to actor Dan O’Herlihy and artist Elsie Bennett, he spent his early years between Ireland and the United States, eventually attending Phillips Academy Andover and later the University of California, where he excelled as a champion tennis player before turning fully toward acting. O’Herlihy first gained attention as Chuck Cunningham in the early episodes of Happy Days, a role he deliberately left behind to avoid being typecast in light comedic parts. He instead built a diverse and often hard‑edged body of work, appearing in major productions including Never Say Never Again (as the villainous Jack Petachi), Superman III, Death Wish 3, Willow (as the warrior Airk Thaughbaer), and the acclaimed miniseries Lonesome Dove. His television career was equally varied, with appearances in Twin Peaks, Star Trek: Voyager, The Six Million Dollar Man, Murder, She Wrote, and numerous British productions after relocating to the UK. Across more than fifty screen credits, O’Herlihy became known for portraying complex, often formidable characters — soldiers, outlaws, antagonists, and men with a dangerous edge — roles he embraced for the challenge and dramatic weight they offered. Off‑screen, he was regarded as thoughtful, private, and deeply committed to his craft, preferring character work over celebrity. He died in Bath, England, on 15 September 2021 at the age of 70, reportedly of natural causes.
Known for

Midsomer Murders
George Arlington

The Mary Tyler Moore Show
Josh McBride (as Gavin O'Herlihy)

Twin Peaks
Officer Preston King

Star Trek: Voyager
Maje Jabin

Sherlock Holmes
John Garrideb / James Winter

The Six Million Dollar Man
Dan

Happy Days
Chuck Cunningham

Tales from the Crypt
Richard

The Bionic Woman
1976

Marcus Welby, M.D.
Herb Frane
Filmography
- 2009The Descent: Part 2Vaines
- 2002Cruise of the GodsMickey
- 2002Butterfly ManBill Kincaid
- 200018 Wheels of Justice
- 1997Sharpe: The LegendLeroy
- 1997Prince ValiantKing Thane
- 1997Jonathan CreekHal Drucker
- 1997Top of the WorldLieutenant Logan
- 1997Midsomer MurdersGeorge Arlington
- 1995The ShooterDick Powell
- 1995Star Trek: VoyagerMaje Jabin
- 1994The Memoirs of Sherlock HolmesJohn Garrideb / James Winter
- 1993The Last OutlawMarshal Sharp
- 1993Sharpe's EagleCaptain Thomas Leroy
- 1993SharpeCpt. Leroy
- 1991ConagherChris Mahler, Cowboy
- 1990Twin PeaksOfficer Preston King
- 1989Red King, White KnightClancy
- 1989Tales from the CryptRichard
- 1989Lonesome DoveDan Suggs
- 1988WillowAirk
- 1988China Beach
- 1987A Killing on the ExchangeDan Maitland
- 1985Death Wish 3Manny Fraker
- 1985The Dirty Dozen: Next MissionConrad E. Perkins
- 1984Cover Up
- 1984Sherlock HolmesJohn Garrideb / James Winter
- 1984Space RidersRon Harris
- 1983The Secret AdversaryJulius P. Hersheimmer
- 1983Agatha Christie's Partners in CrimeJulius P. Hersheimmer
- 1983Never Say Never AgainJack Petachi
- 1983Superman IIIBrad Wilson
- 1982Matt HoustonMichael Sheridan
- 1982We'll Meet AgainCapt Red Burwash
- 1980A Rumor of WarStanton
- 1979Mark Twain: Beneath the LaughterYoung Clemens
- 1978A WeddingWilson Briggs
- 1978Sergeant Matlovich vs. the U.S. Air ForceArt Stinson
- 1978The Amazing Spider-ManDavid
- 1978A Death in CanaanFather Mark
- 1977The Ghost of Cypress SwampBig Bob Landers
- 1976The Bionic Woman
- 1974The California KidTom
- 1974Police WomanGordon Stuart
- 1974The Healers
- 1974The Six Million Dollar ManDan
- 1974Happy DaysChuck Cunningham
- 1973Call to DangerMechanic
- 1970The Mary Tyler Moore ShowJosh McBride (as Gavin O'Herlihy)
- 1969Marcus Welby, M.D.Herb Frane
Follow their work on Vescene
Rate films and shows on two axes — quality and fun — and share taste with friends.