Question: Spaceballs, a 1987 American film, starred which actor that was best known for his role in "Eight is Enough"?

Context paragraphs:
Streets of Death: Streets of Death is a 1987 American film.  Tommy Kirk had retired from acting when the film was made but the producer made him an offer "that was hard to refuse."  He was the only professional actor in the cast.

Robert Prescott (actor): Robert Prescott is an American actor who has starred in various roles in film and on television.  He is best known for his role as Kent in the 1985 hit comedy film "Real Genius".  He also starred in the 1984 comedy film "Bachelor Party" as Cole Whittier, and appeared in the 1987 Mel Brooks hit comedy "Spaceballs" in a cameo as the Sand Cruiser Driver.

Spaceballs: Spaceballs is a 1987 American comic science fiction film co-written, produced and directed by Mel Brooks.  Starring Brooks, Bill Pullman, John Candy, and Rick Moranis, the film also features Daphne Zuniga, Dick Van Patten, and the voice of Joan Rivers.  In addition to Brooks in a supporting role, the film also features Brooks regulars Dom DeLuise and Rudy De Luca in cameo appearances.

Black Widow (1987 film): Black Widow is a 1987 American film noir thriller film starring Debra Winger, Theresa Russell, Sami Frey and Nicol Williamson.  Dennis Hopper has a short role at the beginning of the film.

Swimming to Cambodia: Swimming to Cambodia, also known as Spalding Gray's Swimming to Cambodia, is a 1987 American film written by and starring Spalding Gray, and directed by Jonathan Demme.  The performance film is of Gray's play and monologue, which centered on such themes as his trip to Southeast Asia to create the role of the U.S. Ambassador's aide in the film "The Killing Fields", the Cold War, Cambodia Year Zero, and his search for his "perfect moment".  The film grossed slightly over $US1 million.

Michael Winslow: Michael Leslie Winslow (born September 6, 1958) is an American actor, beatboxer and comedian billed as the "Man of 10,000 Sound Effects" for his ability to make realistic sounds using only his voice.  He is best known for his roles in all seven "Police Academy" films as Larvelle Jones.  He has also appeared in "Spaceballs", "Cheech and Chong's Next Movie", and commercials for Cadbury and Geico; also appeared on "The Love Boat".

George Wyner: George Wyner (born October 20, 1945) is an American film and television actor.  Wyner graduated from Syracuse University in 1968 as a drama major, and was an in-demand character actor by the early 1970s.  To date, Wyner has made guest appearances in over 100 television series and co-starred in nine.  He is probably best known for his role as ADA Bernstein on the series "Hill Street Blues".  He is also noted for memorable roles in films such as "Spaceballs", "American Pie 2" and "Fletch".

Bill Pullman: William James "Bill" Pullman (born December 17, 1953) is an American actor.  He made his film debut in the 1986 film "Ruthless People", and has since gone on to star in other films, such as "Spaceballs" (1987), "The Accidental Tourist" (1988), "While You Were Sleeping" (1995), "Casper" (1995), "Independence Day" (1996) and "Lost Highway" (1997).  He has also appeared regularly on television, usually in films and miniseries, though he also had a starring role in the one-season show "1600 Penn".  As of late summer 2017, he is in the main cast of USA Network's new eight-episode, murder-mystery limited series "The Sinner".

Dick Van Patten: Richard Vincent Van Patten (December 9, 1928 – June 23, 2015) was an American actor, businessman, and animal welfare advocate, best known for his role as patriarch Tom Bradford on the ABC television comedy-drama "Eight Is Enough".

Video Violence: Video violence also known as Video Violence... When Renting is Not Enough is a 1987 American Independent horror film directed by Gary Cohen.  The film is shot with a VHS camera similar to many rental films of the 1980s and early 90s.

Supporting paragraphs: Spaceballs Dick Van Patten
Answer: Dick Van Patten