|Directed by||Herbert Brenon|
Ray Lissner (assistant)
|Produced by||Joseph M. Schenck|
|Written by||Fannie Hurst (novel, dialogue)|
Elizabeth Meehan (adaptation)
|Music by||Jack Danielson|
|Edited by||Marie Halvey|
|Distributed by||United Artists|
Sound engineer Ed Bernds did not have fond memories of Brenon. "So many of the silent film directors were phonies. I didn't think highly of Herbert Brenon, for instance. He was the old, imperious type of director. Lordly, demanding. There was a scene in Lummox, where Winifred Westover was supposed to be betrayed by Ben Lyon, who has gotten her pregnant. He throws some money down and she takes the money and tears it up with her teeth. Well, Brenon demanded real money! And several takes. The poor propman was going around borrowing money from the crew. It was the Imperial syndrome of silent film directors."
- Winifred Westover - Bertha Oberg
- Dorothy Janis - Chita (*billed as Dorothy King)
- Lydia Yeamans Titus - Annie Wennerberg
- Ida Darling - Mrs. Farley
- Ben Lyon - Rollo Farley
- Myrta Bonillas - Veronica Neidringhous
- Cosmo Kyrle Bellew - John Bixby
- Anita Bellew - Mrs. John Bixby
- Robert Ullman - Paul Bixby
- Clara Langsner - Mrs. Wallenstein Sr.
- William Collier, Jr. - Wally Wallenstein
- Edna Murphy - May Wallenstein
- Torben Meyer - Silly Willie
- Fannie Bourke - Mrs. McMurtry
- Myrtle Stedman - Mrs. Ossetrich
- Danny O'Shea - Barney
- William Bakewell - Paul Charvet
- Sidney Franklin - Mr. Meyerbogen
- Dickie Moore - Bit
- Billy Seay - Petey
Per IMDB, the film survives at the British Film Institute, and the soundtrack discs are preserved at the UCLA Film and Television Archive. The film had a Movietone soundtrack, however, discs were prepared for theaters not yet wired for sound-on-film.
- The American Film Institute Catalog Feature Films: 1921-30 by The American Film Institute, c.1971
- The AFI Catalog of Feature Films : Lummox
- Eyman, Scott. The Speed of Sound: Hollywood and the Talkie Revolution 1926-1930. Simon and Schuster, New York: 1997.