Question: What actor from Caddyshack and The Great Santini starred in The Whoopee Boys

Context paragraphs:
The Death of Santini: The Death of Santini: The Story of a Father and His Son is a 2013 memoir written by Pat Conroy.  It complements the 1976 novel "The Great Santini" which was adapted into a 1979 film of the same name.

The Whoopee Boys: The Whoopee Boys is a 1986 comedy film starring Michael O'Keefe and Paul Rodriguez.  The movie was made by the writers and the producers of the 1984 hit film "Revenge of the Nerds".

Captain Frodo: Captain Frodo (born 1976 in Haugesund, Norway), also known as “The Incredible Rubberman”, is a Guinness World Record breaking contortionist living in Australia.  He is the son of a famous Norwegian magician known as “The Great Santini”.

The Great Santini: The Great Santini is a 1979 American drama film written and directed by Lewis John Carlino, based on the 1976 novel of the same name by Pat Conroy.  The film stars Robert Duvall, Blythe Danner, and Michael O'Keefe, and tells the story of a U.S. Marine Corps officer whose success as an F-4 Phantom military aviator contrasts with his shortcomings as a husband and father.  Set in 1962, before widespread American involvement in the Vietnam War, the plot explores the high price of heroism and self-sacrifice.

Donald Conroy: Donald "The Great Santini" Conroy (April 4, 1921 – May 9, 1998) was a United States Marine Corps colonel and a member of the famed Black Sheep Squadron during the Korean War.  He was also a veteran of World War II and of two tours of duty in Vietnam.  He is best known for being the inspiration for the character LtCol.  "Bull" Meecham in "The Great Santini" which was written by his son Pat Conroy.

The Great Santini (novel): The Great Santini is a novel written by Pat Conroy and published in 1976.

Michael O'Keefe: Michael O'Keefe (born Raymond Peter O'Keefe, Jr.; April 24, 1955) is an American film and television actor, known for his roles as Danny Noonan in "Caddyshack" and Ben Meechum in "The Great Santini" — for which he received a Golden Globe Award for New Star of the Year, as well as a nomination for the Academy Award for Best Supporting Actor.

Peter MacGregor-Scott: Peter MacGregor-Scott (b. December 28, 1947) is an American film producer, production manager and assistant director.  He is the producer of the 1997 "Batman & Robin" film.  He has produced the Cheech & Chong films "Cheech & Chong's The Corsican Brothers", "Still Smokin'" and "Born in East L.A.".  Others are "The Whoopee Boys and "Death to Smoochy".

Robert Duvall: Robert Selden Duvall ( ; born January 5, 1931) is an American actor and filmmaker.  He has been nominated for seven Academy Awards (winning for his performance in "Tender Mercies"), seven Golden Globes (winning four), and has multiple nominations and one win each of the BAFTA, Screen Actors Guild Award, and Emmy Award.  He received the National Medal of Arts in 2005.  Duvall has starred in numerous films and television series, including "To Kill a Mockingbird" (1962), "The Twilight Zone" (1963), "The Outer Limits" (1964), "Bullitt" (1968), "True Grit" (1969), "MASH" (1970), "THX 1138" (1971), "Joe Kidd" (1972), "The Godfather" (1972), "The Godfather Part II" (1974), "The Conversation" (1974), "Network" (1976), "Apocalypse Now" (1979), "The Great Santini" (1979), "Lonesome Dove" (1989), "The Handmaid's Tale" (1990), "Rambling Rose" (1991), and "Falling Down" (1993).

Brian Andrews (actor): Brian Andrews is an American actor who has appeared in movies and on television.  He is best known for his role as Tommy Doyle in the classic John Carpenter horror movie "Halloween", a role he reprised briefly in "Halloween II".  He has also appeared in the films "The Great Santini", "Three O'Clock High" and "The Long Days of Summer".

Supporting paragraphs: The Whoopee Boys Michael O'Keefe
Answer: Michael O'Keefe