Film:
* Man of La Mancha (1972) - His most famous role, playing the iconic character of Don Quixote. This film earned him a Golden Globe Award and an Academy Award nomination.
* The Sound of Music (1965) - He played the role of Captain Georg von Trapp in this iconic musical film.
* The Greatest Story Ever Told (1965) - He portrayed the role of the apostle John in this biblical epic.
* The Thrill of it All (1963) - He starred alongside Doris Day and James Garner in this romantic comedy.
* The Longest Day (1962) - He played the role of General James Gavin in this World War II epic.
* The Young Lions (1958) - He appeared in this war drama alongside Marlon Brando and Montgomery Clift.
* The Bad and the Beautiful (1952) - He had a supporting role in this film noir classic.
Television:
* Man of La Mancha (1979) - He reprised his role as Don Quixote in this television movie adaptation of the stage musical.
* The Night That Panicked America (1975) - He starred in this television film about the War of the Worlds radio broadcast.
* The Waltons (1972-1981) - He played the recurring role of John Walton Sr., the patriarch of the Walton family.
* The Man from U.N.C.L.E. (1964-1968) - He guest-starred in several episodes of this popular spy series.
* The Twilight Zone (1963) - He appeared in the episode "The Last Night of the World."
* Wagon Train (1957-1965) - He guest-starred in several episodes of this Western series.
* The United States Steel Hour (1953-1963) - He appeared in several episodes of this anthology series.
Stage:
Richard Kiley was also a renowned stage actor, most famous for his role as Don Quixote in the Broadway production of Man of La Mancha (1965). He won the Tony Award for Best Actor in a Musical for this performance. Other notable stage credits include:
* The King and I (1951)
* Kismet (1953)
* The Pajama Game (1954)
* The Sound of Music (1959)
* No Strings (1962)
* Camelot (1960)
This list is not exhaustive, but it provides a good overview of the wide range of projects that Richard Kiley was involved in during his long and successful career.