Bartell was born in New Orleans, Louisiana, but grew up in Houston, where he got his start at station KRPC. In 1942, he joined the staff of KWKW radio as an announcer.
Radio
Upon moving to California, Bartell became a favorite of producer/director Norman MacDonnell, performing frequently on Escape, and was a leading member of the Gunsmoke repertory company. Bartell was with the latter series from the first broadcast on April 26, 1952 until the last show on June 18, 1961; his roles ranged from friendly townspeople to victims to heavies, from the occasional role of Dodge City printer Mr. Hightower to famed gunslinger Doc Holliday in a 1952 episode. With fellow actor Vic Perrin, he also co-wrote two episodes near the end of the radio run, and appeared many times on the TV version of Gunsmoke, sometimes reprising his radio roles. Bartell worked on other radio Westerns such as The Six Shooter, Frontier Gentleman, Have Gun Will Travel, and Fort Laramie. Other recurring radio parts included a stint as one of several actors to play Archie Goodwin in The New Adventures of Nero Wolfe starring Sydney Greenstreet, Tommy Brooks on the situation comedyThe Charlotte Greenwood Show, and Officer Ed Miller on Rogers of the Gazette. As an announcer, he was heard on The New Adventures of Sherlock Holmes for several years, interviewing Dr. Watson and segueing into commercials for Petri Wine . Other radio acting jobs included multiple roles in Norman Corwin's VE day special On a Note of Triumph, a recurring role as a high strung insurance representative on Yours Truly, Johnny Dollar, frequent appearances on Jack Webb's shows Dragnet and Pete Kelly's Blues, and episodic parts on The Modern Adventures of Casanova, My Favorite Husband, The Saint, Suspense, and Lux Radio Theater,
Television
In films and television, Bartell's youthful voice was revealed to come from a silver-haired figure. His TV appearances included guest roles on Get Smart, I Love Lucy, Wild Wild West,The Untouchables' and The Twilight Zone, in addition to the television versions of Gunsmoke and Dragnet''.
Film
Bartell's films included Voice in the Mirror, Johnny Concho, the 1954 Dragnet movie and an unbilled part in Howard Hawks' Monkey Business.
Personal life
Apart from his acting work, Bartell was an active photographer. In his last years, he was a frequent presence at old-time radio conventions and recreations, wrote online articles about the medium and his experiences, and even participated in radio-themed chat rooms. His final radio appearance was on Seattle radio producer Jim French's series The Further Adventures of Sherlock Holmes, guest starring as a blustery American publisher in an August 2003 episode. He died the following February.
Death
On February 26, 2004, Bartell died in Ashland, Oregon. He was 90 years old. He was cremated and his ashes returned to his family in residence.