Henry Lehrman (March 30, 1886 – November 7, 1946) was an American actor, screenwriter, director and producer.
Billie Ritchie (14 September 1878 – 6 July 1921) was a Scottish comedian who first gained transatlantic fame as a performer for British music hall producer Fred Karno—this, a full decade before Stan Laurel and Charlie Chaplin took a similar career path.
 Ritchie is best recalled today for the silent comedy shorts he made between 1914 and 1920 for director/producer Henry Lehrman's L-KO Kompany and Fox Film Sunshine Comedy unit.
Show Them No Mercy!
 is a 1935 American crime film directed by George Marshall and written by Kubec Glasmon and Henry Lehrman.
 The film stars Rochelle Hudson, Cesar Romero, Bruce Cabot, Edward Norris, Edward Brophy and Warren Hymer.
 The film was released on December 6, 1935, by 20th Century Fox.
Cupid in a Dental Parlor (also known as "Love in the Dental Parlor") is a 1913 short comedy film directed by Henry Lehrman.
 Harold Lloyd is said to have appeared in this film, but this is unconfirmed.
The L-KO Kompany, or L-KO Komedies, was an American motion picture company founded by Henry Lehrman that produced silent one-, two- and very occasionally three-reel comedy shorts between 1914 and 1919.
 The initials L-KO stand for "Lehrman KnockOut".
Making a Living (also known as Doing His Best, A Busted Johnny, Troubles and Take My Picture) is the first film starring Charlie Chaplin.
 It premiered on February 2, 1914.
 Chaplin plays Edgar English, a lady-charming swindler who runs afoul of the Keystone Kops.
 It was written and directed by Henry Lehrman.
Why Sailors Go Wrong is a 1928 American silent comedy film directed by Henry Lehrman and written by Randall Faye and Delos Sutherland.
 The film stars Sammy Cohen, Ted McNamara, Sally Phipps, Nick Stuart, E. H. Calvert and Carl Miller.
 The film was released on March 25, 1928, by Fox Film Corporation.
On Time is a lost 1924 silent film comedy directed by Henry Lehrman and starring Richard Talmadge.
Chris Marker (] ; 29 July 1921 – 29 July 2012) was a French writer, photographer, documentary film director, multimedia artist and film essayist.
 His best known films are "La Jetée" (1962), "Le Joli Mai" (1963), "A Grin Without a Cat" (1977) and "Sans Soleil" (1983).
 Marker is often associated with the Left Bank Cinema movement that occurred in the late 1950s and included such other filmmakers as Alain Resnais, Agnès Varda, Henri Colpi and Armand Gatti.
The Villain Foiled is a 1911 silent film short directed by Henry Lehrman and Mack Sennett early in his career.
 The film stars Edward Dillon and Blanche Sweet.
 The film was a split reel along with the film The Baron.

Question: Are Henry Lehrman and Chris Marker both actors?
Answer: no