Guest appearances by original series regulars Lilith (BeBe Neuwirth) and Roz (Peri Gilpin) also helped ... Then he was a ...

Had Mahoney not passed away in 2018, he would have surely appeared in the revival series and matched Peri Gilpin's record for playing multiple characters across three "Cheers" universe shows.

Peri Gilpin is an American actress known for portraying Roz Doyle in the U.S. television series Frasier and Kim Keeler in the ABC Family television drama Make It or Break It.