Born and raised on Long Island, New York, Martling began a career in stand-up comedy in 1979, developing a blue comedy act in local venues. He self-produced his first of three comedy albums during this time, "What Did You Expect?" (1979). After becoming involved with Rick Dees's radio show as a regular joke feature, Martling sent his albums to New York City radio personality Howard Stern, who invited him as a weekly guest and writer in 1983. This led to his hiring as head writer from 1986 to 2001. He released further albums during his tenure, including "Sgt. Pecker" (1996), "Joke Man" (1996), "Hot Dogs + Donuts" (1998).