
Gavan O'Herlihy
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.
Filmography

The Descent: Part 2
as Vaines
The Descent: Part 2
as Vaines

Cruise of the Gods
as Mickey
Cruise of the Gods
as Mickey

Sharpe: The Legend
as Leroy
Sharpe: The Legend
as Leroy

Prince Valiant
as King Thane
Prince Valiant
as King Thane

Top of the World
as Lieutenant Logan
Top of the World
as Lieutenant Logan

Sharpe's Eagle
as Captain Thomas Leroy
Sharpe's Eagle
as Captain Thomas Leroy

Conagher
as Chris Mahler, Cowboy
Conagher
as Chris Mahler, Cowboy

Red King, White Knight
as Clancy
Red King, White Knight
as Clancy

Willow
as Airk
Willow
as Airk

Death Wish 3
as Manny Fraker
Death Wish 3
as Manny Fraker

The Dirty Dozen: Next Mission
as Conrad E. Perkins
The Dirty Dozen: Next Mission
as Conrad E. Perkins

Space Riders
as Ron Harris
Space Riders
as Ron Harris

Never Say Never Again
as Jack Petachi
Never Say Never Again
as Jack Petachi

Superman III
as Brad Wilson
Superman III
as Brad Wilson

Mark Twain: Beneath the Laughter
as Young Clemens
Mark Twain: Beneath the Laughter
as Young Clemens

A Wedding
as Wilson Briggs
A Wedding
as Wilson Briggs

Sergeant Matlovich vs. the U.S. Air Force
as Art Stinson
Sergeant Matlovich vs. the U.S. Air Force
as Art Stinson

A Death in Canaan
as Father Mark
A Death in Canaan
as Father Mark

The California Kid
as Tom
The California Kid
as Tom

The Healers
The Healers

Call to Danger
as Mechanic
Call to Danger
as Mechanic