Matthew Roubert was born in New York in 1907 and began his career as a child star from around 1910 to 1921. His father, William L. Roubert, was involved in his early film appearances and was the general manager of the Aurora Film Plays Corporation.
As a child star, Matthew Roubert appeared in numerous films, including "John Barleycorn" (1914) and "The Waif" (1915),both of which were produced by his father's company. He also starred in "The Universal Boy" for Carl Laemmle's IMP (Independent Motion Picture Company) and appeared in two-reel comedies for Reelcraft.
By the 1920s, Roubert had formed his own production company, Matty Roubert Productions, Inc., which released the film "Heritage" (1920). However, by the 1930s, Roubert discovered that significant film roles were no longer being offered to him, and he was typecast as a newsboy, bellhop, or elevator operator.
Roubert continued to work in films throughout the 1930s and 1940s, appearing in numerous westerns and serials. He worked with several notable stars, including Don 'Red' Barry, Bob Steele, Lash LaRue, and Roy Rogers. During World War II, Roubert served in the military and continued to work in uncredited roles in films and on television.
After the war, Roubert continued to work in films and television, often doubling for shorter cowboy heroes. He married Mary L. Bowman in Los Angeles in 1955 and passed away on May 17, 1973, in Honolulu, Hawaii.