In 1970 Langston began his show Business career on Rowan & Martin's Laugh-In doing impressions of a fork, a tube of toothpaste and a grandfather clock. Later—at the suggestion of Redd Foxx—he teamed with Comedian Freeman King. After they both appeared on several episodes of The Midnight Special they were spotted by producers and soon became regular performers on The Sonny & Cher Comedy Hour. Langston and King performed music and comedy sketches with the hosts and guest stars, alongside other regular performers such as Ted Zeigler, Peter Cullen and Teri Garr.
Langston later produced The Unknown Comedy Hour for Playboy TV, followed by The Sex and Violence Family Hour which starred a very young Jim Carrey. He also wrote the screenplays for the films Night Patrol (1984), Up Your Alley (1988) and Wishful Thinking (1997) as well as being the co-host of "The NEW Truth or Consequences" (1987). He also had a role in the children's TV series E.M.U-TV (1989) as "Murray the Technical Director."
Twice divorced by the early 1990s, Langston went into semi-retirement from show Business to concentrate on raising his daughters as a single father. His elder daughter, Myah Marie, became a singer-songwriter who had written and published more than 50 songs by the time she reached the age of 19; she was known to have recorded with notable pop stars including Britney Spears. His younger daughter Mary continued to live with Langston on their hillside ranch near the mountain town of Tehachapi, California.
Since 2000, Langston occasionally appeared as a stand-up comic in Las Vegas and wrote a memoir "Journey Thru The Unknown..."
Langston most recently reappeared as "The Unknown Comic" in the film Confessions of a Dangerous Mind (2002). He wrote, directed and performed in Dirty Jokes: The Movie and inspired by the hit stage show The Vagina Monologues he created and performed "one man's response" to the show, which he called The Weenie Man-o-logs.
Strapped for cash, he accepted an offer to appear on The Gong Show. He was reportedly embarrassed about appearing on the show, so—with the director's permission—he put a paper bag over his head with holes for his eyes and mouth, memorized a few old jokes and burst onto the show as "The Unknown Comic." The character, a frenetic speed-jokester in smarmy attire, was a hit, and developed a cult following.
