In 1995, Attell was featured on two HBO specials: alongside up-and-comers Louis C.K., Anthony Clark, Eric Tunney and Dave Chappelle. He was a featured performer on the 1995 Young Comedians Special hosted by Garry Shandling. He was given his own 60-minute special on the channel's HBO Comedy Showcase. Subsequently, Attell was also given an episode of HBO Comedy Half-Hour in 1997. Attell's first one-hour special, Captain Miserable aired December 8, 2007, on HBO. His latest special Road Work aired 2014 on Comedy Central.
In 1995, Attell appeared as Squiggly Dave on Dr. Katz, Professional Therapist. In 1999, the network issued Attell an installment in their Comedy Central Presents series.