"Are You...?"
 is the first episode of the seventh season of the Showtime television series "Dexter" and the seventy-third episode overall.
 The episode originally aired on September 30, 2012.
 It was directed by John Dahl and written by newly appointed showrunner Scott Buck.
The Road to Love is a surviving 1916 American drama silent film directed by Scott Sidney and written by Blanche Dougan Cole and Gardner Hunting.
 The film stars Lenore Ulric, Colin Chase, Lucille Ward, Estelle Allen, Gayne Whitman and Herschel Mayall.
 The film was released on December 7, 1916, by Paramount Pictures.
Desert Thieves is a 1914 American silent short western film directed by Scott Sidney and featuring Charles Ray, Gretchen Lederer, Tsuru Aoki, Frank Keenan and Ernest Swallow in lead roles.
Scott Sidney (1872 – 20 July 1928), born Harry Wilbur Siggins, was an American film director.
 He directed 117 films between 1913 and 1927.
John Dahl (born 1956) is an American film and television director and writer, best known for his work in the neo-noir genre.
Red Rock West is a 1993 American neo-noir film directed by John Dahl and starring Nicolas Cage, Lara Flynn Boyle, J. T. Walsh and Dennis Hopper.
 It was written by Dahl and his brother Rick, and shot in Montana and Willcox, Arizona.
The Adventures of Tarzan (1921) is a 15 chapter movie serial which features the third and final appearance of Elmo Lincoln as Tarzan.
 The serial was produced by Louis Weiss, written by Robert F. Hill and Lillian Valentine (partially based on the novels "The Return of Tarzan" and "Tarzan and the Jewels of Opar" by Edgar Rice Burroughs), and directed by Robert F. Hill and Scott Sidney.
 The first chapter was released on December 1, 1921.
813 is a 1920 American mystery film directed by Charles Christie and Scott Sidney, written by Scott Darling from the story by Maurice Leblanc, produced by Al Christie, released by the Christie Film Company and the Robertson-Cole Pictures Corporation, and starring Wedgwood Nowell as jewel thief Arsene Lupin with a supporting cast featuring Ralph Lewis, Wallace Beery, and Laura La Plante.
Tarzan of the Apes is a 1918 American action/adventure silent film directed by Scott Sidney starring Elmo Lincoln, Enid Markey, George B. French and Gordon Griffith.
 It was the first Tarzan movie ever made and is based on Edgar Rice Burroughs' original novel "Tarzan of the Apes".
 The movie adapts only the first part of the novel, the remainder becoming the basis for the sequel, "The Romance of Tarzan".
 The film is considered the most faithful to the novel of all the film adaptations.
 Its most notable plot change is the introduction of the character Binns and his role in bringing the Porters to Africa; the novel brought them there through the improbable coincidence of a second mutiny.
Her Own People is a 1917 American drama silent film directed by Scott Sidney and written by Gardner Hunting and Julia Crawford Ivers.
 The film stars Lenore Ulric, Colin Chase, Howard Davies, Adelaide Woods, Jack Stark and Gail Brooks.
 The film was released on February 8, 1917, by Paramount Pictures.

Question: Who is known by the most other names, Scott Sidney or John Dahl?
Answer: Scott Sidney