Question: Which was an American actor, Mack V. Wright or Kurt Neumann?
Context: Rainbow on the River (also known as It Happened in New Orleans) is a 1936 American musical film directed by Kurt Neumann from a screenplay by Harry Chandlee, Earle Snell, and William Hurlbut, based upon the novel "Toinette's Philip" by C. V. Jamison.  Produced by Bobby Breen Productions and Principal Productions, the movie was premiered in New York City on December 17, 1936, and released nationwide by RKO Radio Pictures the following week on Christmas Day.  The film stars Bobby Breen, May Robson and Charles Butterworth. Machete is a 1958 American drama film directed by Kurt Neumann and written by Kurt Neumann and Carroll Young.  The film stars Mari Blanchard, Ruth Cains, Albert Dekker, Juano Hernandez, Carlos Rivas and Lee Van Cleef.  The film was released in December 1958, by United Artists. Mack V. Wright (9 March 1894 – 14 August 1965) was an American actor and film director.  Active as a director from 1920 to the late 1940s, he also had an extensive career as an assistant director, second-unit director and production manager.  His heyday was in the 1930s, when he directed or co-directed serials for Republic Pictures and made westerns for Monogram Pictures, often with John Wayne.  He was also an actor, appearing in his first film in 1914 and his last in 1934, almost all of them westerns. Cappy Ricks Returns is a 1935 American comedy film directed by Mack V. Wright and written by George Waggner.  The film stars Robert McWade, Ray Walker, Florine McKinney, Lucien Littlefield, Bradley Page and Lois Wilson.  The film was released on September 25, 1935, by Republic Pictures. Kurt Neumann (5 April 1908, Nuremberg, Germany - 21 August 1958, Los Angeles) was a German Hollywood film director who specialized in science fiction movies in his later career.  Neumann came to the U.S. in the early talkie era, hired to direct German language versions of Hollywood films. Roarin' Lead is a 1936 American film directed by Sam Newfield and Mack V. Wright and was the third entry of the 51-film series of Western "Three Mesquiteers" B-movies. Kronos (a.k.a. Kronos, Destroyer of the Universe) is a 1957 independently made American black-and-white science fiction film from Regal Films, produced by Irving Block, Louis DeWitt, Kurt Neumann, and Jack Rabin, directed by Kurt Neumann, that stars Jeff Morrow and Barbara Lawrence.  "Kronos" was distributed by 20th Century Fox on a double bill with "She Devil". Masked is a 1920 American short Western film directed by Mack V. Wright and featuring Hoot Gibson. The Big Show is a 1936 American Western musical film directed by Mack V. Wright and starring Gene Autry, Kay Hughes, and Smiley Burnette.  Written by Dorrell and Stuart E. McGowan, the film is about a singing cowboy who confuses two girls by being himself and his own stunt double at the Texas Centennial in Dallas.  Roy Rogers appears in the film as one of the Sons of the Pioneers. The Deerslayer is a 1957 American adventure film directed by Kurt Neumann and written by Carroll Young, Neumann and an uncredited Dalton Trumbo.  The film stars Lex Barker, Rita Moreno, Forrest Tucker, Cathy O'Donnell, Jay C. Flippen and Carlos Rivas.  It is based on the novel "The Deerslayer" by James Fenimore Cooper.  The film was released on September 10, 1957, by 20th Century Fox.
Answer: Mack V. Wright