Tony Danza
From Muppet Wiki
Tony Danza and Oscar.
Tony Danza (b. 1951) starred on the sticoms Taxi and Who's The Boss, as well as his own talk show, The Tony Danza Show, on which Elmo, Kermit and Miss Piggy were regular guests.
Tony also chatted with Miss Piggy in Disneyland's 35th Anniversary Celebration in 1990.
He has appeared on Sesame Street with Oscar the Grouch and playing tennis without a ball with Big Bird in a sketch narrated by Kevin Clash.
