Jack Jones (March 28, 1924 - January 18, 1988), better known as Jeff Burton, was an American character actor.
 He was best known for playing Dodge the astronaut in the 1968 science fiction film "Planet of the Apes".
 He also appeared opposite Pam Grier in the 1973 blaxploitation film "Coffy".
Lionel White (9 July 1905 – 26 December 1985) was an American journalist and crime novelist, several of whose dark, noirish stories were made into films.
 His books include "The Snatchers" (made into a film as "The Night of the Following Day" by Hubert Cornfield starring Marlon Brando), "The Money Trap" (made into a movie by Burt Kennedy starring Glenn Ford and Elke Sommer), "The Big Caper" (made into a film by Robert Stevens starring Rory Calhoun), "Death Takes the Bus", "Clean Break" (adapted by Stanley Kubrick as the basis for his 1956 film, "The Killing"), and "Obsession" (adapted by Jean-Luc Godard as the basis for his 1965 film, "Pierrot le fou") and by the Finnish director Seppo Huunonen for the 1974 film "The Hair" (Karvat) and "Rafferty", adapted by 1980 Soviet Lenfilm production of the same title.
Buck Kartalian (August 13, 1922 – May 24, 2016) was an American character actor.
 He appeared in more than 70 films and television shows between 1953 and his retirement in 2006.
 Kartalian is best known for his role in the film "Planet of the Apes" (1968) as Julius, the brutish gorilla who guarded the captive humans at the Research Complex.
 Kartalian was the father of the film producer and director Jason Kartalian.
The Big Caper is a 1957 crime drama film noir directed by Robert Stevens starring Rory Calhoun, Mary Costa and James Gregory
Mark Christopher Lawrence (born May 22, 1964) is an American character actor, stand-up comedian and voice-over artist.
 He is known for his role as esoteric D.J., Tone Def, in the 1994 satirical rap mockumentary, "Fear of a Black Hat."
 He has co-starred in popular films such as "", "Tales From the Hood", "Planet of the Apes", "Lost Treasure" and "The Pursuit of Happyness".
Planet of the Apes is an American science fiction media franchise consisting of films, books, television series, comics, and other media about a world in which humans and intelligent apes clash for control.
 The series began with French author Pierre Boulle's 1963 novel "La Planète des Singes", translated into English as "Planet of the Apes" or "Monkey Planet".
 The 1968 film adaptation, "Planet of the Apes", was a critical and commercial hit, initiating a series of sequels, tie-ins, and derivative works.
 Arthur P. Jacobs produced the series under APJAC Productions until his death in 1973; since then 20th Century Fox has owned the franchise.
Dawn of the Planet of the Apes is a 2014 American science fiction film directed by Matt Reeves and written by Mark Bomback, Rick Jaffa and Amanda Silver.
 It stars Andy Serkis, Jason Clarke, Gary Oldman, Keri Russell, Toby Kebbell and Kodi Smit-McPhee.
 It is the sequel to the 2011 film "Rise of the Planet of the Apes", which began 20th Century Fox's reboot of the original "Planet of the Apes" series.
 "Dawn" is set ten years after the events of "Rise", and follows a group of people in San Francisco who struggle to stay alive in the aftermath of a plague that is wiping out humanity, while Caesar tries to maintain dominance over his community of intelligent apes.
War for the Planet of the Apes is a 2017 American science fiction film directed by Matt Reeves and written by Mark Bomback and Reeves.
 A sequel to "Rise of the Planet of the Apes" (2011) and "Dawn of the Planet of the Apes" (2014), it is the third installment in the "Planet of the Apes" reboot series.
 The film stars Andy Serkis, Woody Harrelson and Steve Zahn, and follows a confrontation between the apes, led by Caesar, and the humans for control of Earth.
 Like its predecessor, its premise shares several similarities to the fifth film in the original series, "Battle for the Planet of the Apes", but it is not a direct remake.
Escape from the Planet of the Apes is a 1971 science fiction film directed by Don Taylor and written by Paul Dehn.
 It stars Roddy McDowall, Kim Hunter, Bradford Dillman and Ricardo Montalbán.
 It is the third of five films in the original "Planet of the Apes" series produced by Arthur P. Jacobs, the second being "Beneath the Planet of the Apes" (1970).
 Its plot centers on many social issues of the day including scientific experimentation on animals, nuclear war and government intrusion.
 The film was well received by critics, getting the best reviews of the four "Planet of the Apes" sequels.
 It was followed by "Conquest of the Planet of the Apes".
James Gregory (December 23, 1911 – September 16, 2002) was an American character actor known for his deep, gravelly voice and playing brash roles such as the McCarthy-like Sen. John Iselin in "The Manchurian Candidate" (1962), the audacious General Ursus in "Beneath the Planet of the Apes" (1970), and crusty Inspector Frank Luger in the television sitcom "Barney Miller" (1975–1982).

Question: What American character actor starred in "Beneath the Planet of the Apes" and The Big Caper
Answer: James Gregory