Answer: MAHONEY

AnswerCrossword Clue
MAHONEY"Frasier's" dad portrayer
MAHONEYJohn of "Frasier"
MAHONEYMary ..., first professional African-American nurse in the U.S.
MAHONEYWinchell dummy Jerry
MAHONEYWinchell's dummy sidekick
MAHONEYPaul Winchell's star performer.
MAHONEY"Frasier" co-star