Martin.
A university student/part time waiter at Cafe Nervosa.
Gigi Rice is the actress who played Regan, Frasier Crane's neighbor on the sitcom Frasier.
English actress Millicent Martin played Gertrude Moon on Frasier.
Kelsey Grammer (as Frasier), David Hyde Pierce (Frasier's brother Niles Crane), Jane Leeves (Daphne Moon), Peri Gilpin (Roz Doyle), John Mahoney (Frasier's dad Martin Crane), Dan Butler (Bob 'Bulldog' Briscoe) and Moose who played Eddy the dog.
Bebe Glazer.
Kelsey Grammar played Frasier Crane.
Yes.
David Hyde Pierce
Martin Crane
Two actors have played Frasier's son, Luke Tarsitano and Trevor Einhorn.
John Drayman has: Played Waiter in "Perfect Strangers" in 1986. Played Waiter in "Sisters" in 1991. Played Assistant Director in "Homefront" in 1991. Played Walnut in "Frasier" in 1993. Played Parish Priest in "Last Rites" in 1999.
Brian Klugman