Editing Dan O'Herlihy

{{Cast Data
| image= Ravishol.jpg
| character=[[Ravashol]]
| series=TOS
| born_month= 5
| born_day= 1
| born_year= 1919
| death_month= 2
| death_day= 17
| death_year=2005
| nationality= IRL
| site=
| imdb= 0641397
| sortkey=O'Herlihy, Dan
}}

'''Dan O'Herlihy''' (born May 1, 1919 in Wexford, Ireland, died February 17, 2005 in Malibu, California) was an Irish-American actor.

O'Herlihy gained notability as Brigadier General Warren A. Black in the film ''Fail-Safe'' (1964). From his film debut in the 1947 film, ''Odd Man Out'', O'Herlihy enjoyed many roles in theatrical roles throughout the 1950s and 1960s, gaining an Best Actor Oscar nomination for 1954's ''Robinson Crusoe''.

As television came to pass, O'Herlihy took on roles in television theatre programming such as ''Cavalcade America'' and ''Screen Directors Theatre'', but soon enjoyed episodic TV series such as ''Dr. Kildare'', ''The Travels of Jaimie McPheeters'', ''The Untouchables'', and ''The Big Valley''.

Television content became less serious (and with more available work) than feature films that O'Herlihy had done in the past, but O'Herlihy tried to keep his interests in both films and television, moving from serious to comedic and parody with roles in ''The Man from U.N.C.L.E.'', ''Mission: Impossible'', ''Ironside'' and ''Hawaii Five-O'' while performing in notable epic television series such as ''QB VII''.

By the 1970s, O'Herlihy become more of a character actor with guest-starring roles in many notable shows such as ''Serpico'', ''The Bionic Woman'', ''The Hardy Boys/Nancy Drew Mysteries'' and ''Barnaby Jones''.

In the 1980s and 1990s, O'Herlihy found roles in more TV films such as ''Mark Twain: Beneath the Laughter'' and shows such as ''Murder, She Wrote'' and ''Remington Steele''. Some feature films gave him renewed stardom for younger audiences with ''The Dead'' (1987) and as the kind-spirited alien mentor, Grig, in 1984's ''The Last Starfighter''. O'Herlihy also became part of the TV cult classic, ''Twin Peaks'' in several episodes.

Towards the end of his life, O'Herlihy took on voice acting roles for animated series such as ''The Pirates of Dark Water'' and ''Batman''.

O'Herlihy played Dr. [[Ravashol]] the brilliant creator of the [[Theta]]-class androids and a very dangerous weapon in the [[Original Series]] two-part episode, "[[The Gun on Ice Planet Zero]]".

O'Herlihy was married to Elsa Bennett from 1945 to his death of natural causes in 2005. They had five children, including ''Star Trek: Voyager'' guest star [[imdb:nm0641398|Gavan O'Herlihy]].