‘Cheers’ Alum John Ratzenberger Joins Whitney Cummings HBO Pilot ‘A Lot’
John Ratzenberger, best known for his eleven season run as mail man Cliff Claven on the hit 1980s NBC sitcom Cheers, has been tapped for a co-starring role opposite Whitney Cummings in her HBO pilot A Lot. 
HBO is teaming up with Whitney and 2 Broke Girls creator Whitney Cummings for their next comedy project. The premium cable network has handed out a pilot order to the as-yet untitled comedy which is based on Maureen Dowd’s book Are Men Necessary? When Sexes Collide. In addition, HBO has also ordered a stand-up special featuring Cummings.