Television:
* The Prisoner (1967-1968): McGoohan created, co-wrote, and starred in this iconic spy thriller series. He played a nameless former secret agent who is kidnapped and held captive in a strange seaside village.
* Danger Man (1960-1968): McGoohan starred as John Drake, a British secret agent who travels the world thwarting threats to national security.
* Columbo (1972-1978, 1989): McGoohan appeared in several episodes of this popular crime drama, often playing sophisticated and intelligent criminals.
* The Adventures of Robin Hood (1955-1959): He played the role of Will Scarlet in this classic British TV series.
* The Sandbaggers (1978-1980): McGoohan starred in this espionage series as a British intelligence officer.
* The Professionals (1977-1983): He made a guest appearance in an episode of this action series.
* The Velvet Touch (1974): This short-lived series saw McGoohan playing a private detective.
* The First Churchills (1969): He played John Churchill, the Duke of Marlborough, in this historical drama.
Film:
* The Moon's Shadow (1955): One of his early film roles.
* The Quiller Memorandum (1966): A Cold War thriller starring McGoohan as a British agent.
* The Italian Job (1969): He played a small but memorable role in this heist classic.
* The Day of the Jackal (1973): McGoohan played a French police inspector in this political thriller.
* The Three Musketeers (1973): He played the villainous Rochefort in this swashbuckling adventure film.
* The Wild Geese (1978): A war film starring McGoohan as a mercenary.
* The Jewel of the Nile (1985): He had a brief but memorable role in this romantic adventure film.
This is not an exhaustive list, as McGoohan appeared in many other television shows and films throughout his career. His work, particularly in The Prisoner, is highly regarded and continues to inspire filmmakers and viewers today.