Question: Was Tom Forman or John Michael Crichton an American actor in the 1920s?

Context articles: The Round-Up (1920 film)
Michael Crichton
Tom Forman (cartoonist)
The 13th Warrior
Tom Forman (actor)
The Sins of Rosanne
Binary (novel)
Grave Descend
The Ladder of Lies
Zero Cool

The Round-Up is a 1920 American Western film starring Roscoe "Fatty" Arbuckle and featuring Wallace Beery.
 The movie was written by Edmund Day and Tom Forman, directed by George Melford, and based on Day's play that was a huge hit for Roscoe Arbuckle's older cousin Macklyn Arbuckle and Julia Dean on the Broadway stage in 1907.
 It was Macklyn in the play who created the famous phrase used in advertisements of the film, "nobody loves a fat man".
John Michael Crichton ( ; October 23, 1942 – November 4, 2008) was an American best-selling author, screenwriter, film director and producer best known for his work in the science fiction, medical fiction and thriller genres.
 His books have sold over 200 million copies worldwide, and many have been adapted into films.
Tom Forman (May 2, 1936 – May 18, 1996) was an American comic strip cartoonist, co-creator of the classic comic strip "Motley's Crew" along with Ben Templeton.
 His pre-1997 take on the comic strip involved Mike Motley's career as a blue-collar worker, sports, and his friends.
 After Forman died of cancer, the storylines of the comic strip he helped create became more feminine and had "touchy-feely" parts at various points in the storyline.
 They dealt with being forced to say "hi" to the in-laws under embarrassing conditions, attending various weddings, and letting out bottled emotions.
 This new spin on the comic strip alienated many older male viewers and may have led to its retirement on January 1, 2000.
The 13th Warrior is a 1999 American historical fiction action film based on the novel "Eaters of the Dead" by Michael Crichton and is a loose retelling of the tale of Beowulf.
 It stars Antonio Banderas as Ahmad ibn Fadlan, Diane Venora, and Omar Sharif.
 It was directed by John McTiernan.
 Crichton directed some reshoots uncredited.
 The film was produced by McTiernan, Crichton, and Ned Dowd, with Andrew G. Vajna and Ethan Dubrow as executive producers.
Tom Forman (February 22, 1893 – November 7, 1926) was an American motion picture actor, director, writer, and producer of the early 1920s.
The Sins of Rosanne is a surviving 1920 American silent drama film starring Ethel Clayton and directed by actor/director Tom Forman.
 The Famous Players-Lasky studio produced the film with release by Paramount Pictures.
Binary is a techno-thriller novel written by Michael Crichton in 1972 under the pen-name John Lange.
 Crichton also directed "Pursuit", a television film version.
 The story of both the book and the film revolve around a deadly nerve agent composed by combining two different chemicals.
 Hard Case Crime republished the novel under Crichton's name in 2013.
Grave Descend is a novel written by Michael Crichton under the pseudonym John Lange.
 It was originally published in 1970, and later re-released in 2006 as part of the Hard Case Crime series.
 For this release, Michael Crichton did an overall revision of the text.
 The novel was nominated for the Edgar Award in 1971.
 Hard Case Crime will republish the novel under Crichton's name on October 29, 2013.
The Ladder of Lies is a lost 1920 American drama silent film directed by Tom Forman and written by Edith M. Kennedy and Harold Vickers.
 The film stars Ethel Clayton, Clyde Fillmore, Jean Acker, Irving Cummings, Charles Meredith and Ruth Ashby.
 The film was released on July 11, 1920, by Paramount Pictures.
Zero Cool is Michael Crichton's fifth published novel.
 It was released in 1969 under the pseudonym of John Lange, and later re-released in 2008 as part of the Hard Case Crime series.
 For this release, Crichton wrote short new framing chapters, in addition to doing an overall revision of the text.
 Hard Case Crime will republish the novel under Crichton's name on November 19, 2013.