
Acting
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.
Known for
Full filmography

Midsomer Murders
1997
CRIME
Star Trek: Voyager
1995
SCI-FI
Twin Peaks
1990
DRAMA
Happy Days
1974
COMEDY
The Six Million Dollar Man
1974
SCI-FI
The Mary Tyler Moore Show
1970
COMEDY
Marcus Welby, M.D.
1969
DRAMA
Sherlock Holmes
1984
CRIME
Police Woman
1974
ACTION
Tales from the Crypt
1989
COMEDY
Matt Houston
1982
DRAMA
China Beach
1988
DRAMA
The Bionic Woman
1976
SCI-FI
Sharpe
1993
WAR
Jonathan Creek
1997
MYSTERY
Lonesome Dove
1989
DRAMA
Never Say Never Again
1983
ADVENTURE
Willow
1988
FANTASY
The Amazing Spider-Man
1978
SCI-FI
Superman III
1983
COMEDY
The Descent: Part 2
2009
ADVENTURE
Death Wish 3
1985
ACTION