Andy Richter, Roger Bart, Craig Bierko, Josh Cribbs and Georgia Engel are also set to appear in upcoming episodes of the sitcom.
"Hot in Cleveland" is currently in its third season, which runs through June.
The show is about three fabulous best friends from Los Angeles -- played by Valerie Bertinelli, Jane Leeves and Wendie Malick -- who find their lives changed forever when their plane, headed for Paris, makes an unexpected landing. When the friends discover life is better in Cleveland, they decide to stay.
Betty White plays the opinionated caretaker from whom they rent a house.