He played three games in the National Hockey League: two with the Buffalo Sabres and one with the Tampa Bay Lightning between 1991 and 1993.

[4] Littman attended the Sabres training camp but was reassigned to their International Hockey League (IHL) affiliate, the Rochester Americans, to begin the 1989–90 season.

[6] Upon their return to the IHL, both Littman and Wakaluk also set a new Rochester record for most points and assists by a goaltender with seven each.

Littman shared the Harry "Hap" Holmes Memorial Award as the AHL's outstanding goaltender, with teammate Darcy Wakaluk.

[12] As a result of his successful stints with the Atlanta Knights, Littman was selected to compete with Team USA at the 1994 IIHF World Championship, where they finished fourth in the tournament.

Before his retirement, Littman played with the IHL's Orlando Solar Bears, recording 53 wins over two years before a career-ending knee injury.