[1] Since his departure from The Howard Stern Show, Martling has undertaken various projects, including acting roles in television and film, and continues to perform stand-up.

From 2006 to 2014, he was the host of Jackie's Joke Hunt on Sirius XM Satellite Radio, on Howard Stern's channel.

"The auditioner bailed out early and the MC wasn't in the room, so I jumped on stage and told a joke, one that I was sure the entire world knew.

At that point, Martling started to pursue stand-up comedy full-time, developing his stage act of songs and dirty jokes.

Martling first heard of radio personality Howard Stern in August 1982 when the owner of Washington, D.C.'s Garvin's comedy club, where Stern had occasionally broadcast from during his time at WWDC (DC-101), suggested to Martling that he send his comedy albums to the recently fired radio DJ who had since landed at WNBC in New York City.

[3][6][8] Stern then began a regular segment titled "Stump The Comedian", a contest where callers were challenged to start a joke that Martling had to provide the punchline to, otherwise they win prizes.

Martling was subsequently hired as a writer on The Howard Stern Show when it moved to the mornings slot in February 1986, initially for two days a week.

After around two months, Martling was hired full-time[8] and became known as the head writer who would take lines written by himself and sound effects and producer Fred Norris and "determine what goes in front of Howard".

[3] Along with Norris, Martling contributed material to radio bits and song parodies and is featured and credited on Stern's television shows, home videos, and albums.

From late 1997 to early 1998, Martling was absent on the show for six weeks while his contract with WXRK owner Infinity Broadcasting Corporation was being renegotiated.

[12][8] In August 2001, a newspaper reported his wish to return, but Stern declined, partly due to the Win Jackie's Money contest he had already started, which involved comedians auditioning for Martling's place in the studio by sitting in on some shows.

Martling has appeared in many films during his career, including the comedy documentary The Aristocrats (2005), Mail Order Bride (2008), Venus & Vegas (2010),[4] and White Irish Drinkers (2010).

He appeared on the TNT television show Leverage and in August 2007, Martling filmed the pilot episode for the sitcom The Pikers.

On October 3, 2006, Martling returned to radio as the host of a weekly, one hour comedy show, Jackie's Joke Hunt, on Stern's channel Howard 101 on Sirius.

[15] Their personal life as well as her appearances and call-ins to The Howard Stern Show contributed greatly to their popularity and put Jackie and Nancy in a spotlight they had not previously enjoyed.

[17] In 2008, Martling and Sirianni continued their professional association with an Off-Off-Broadway Broadway Game Show called "Play With Jackie.

"[18] Martling also had a cameo in a 1990 low-budget horror movie Nancy starred in called Ghoul School, which became another punchline for Stern.