He attended the University of California for one year and left to begin his acting career in Seattle, both on the stage and in radio. He was brought to Hollywood in 1937 to join KNX Radio. He had been married two years before to Dorothy Jack of Seattle. He was the star of Night Cap Yarns over CBS from 1938 through 1942 and was the announcer of dozens of programs, including the Ginny Simms, Rudy Vallee and Nelson Eddy shows.
He starred in Jeff Regan, Investigator and co-developed the radio drama Satan’s Watin’ with Van Des Autels. Graham was also The Wandering Vaquero, the narrator of The Romance Of The Ranchos radio series (1941–1942), also on the CBS network.
One of his few live action roles was playing the tile character in the film Cosmo Jones, Crime Smasher (1943). He had also served as a writer for the radio program on which the film was based upon.
Graham played numerous characters in animated films for Walt Disney, MGM, Columbia and Warner Bros.. He voiced the Wolf in Tex Avery's Droopy cartoons, as well as the Mouse in King-Size Canary at Metro-Goldwyn-Mayer. He provided the voices of the Fox and Crow in the eponymous-named shorts at Columbia.
He was found dead at age 35 in his convertible in the carport of his home in Los Angeles on September 2, 1950. A coroner declared he had committed suicide by carbon monoxide poisoning. -Wikipedia