Yes.
Martin Crane
A university student/part time waiter at Cafe Nervosa.
Martin Crane the father of Frasier Crane
John Mahoney, the actor best known for his role as Martin Crane on "Frasier," passed away on February 4, 2018. He had been in declining health prior to his death but was not publicly discussed as "sick" during his final years. Mahoney's contributions to theater and television continue to be celebrated by fans and colleagues alike.
John Mahoney and Jock Mahoney are not directly related, although they share the same last name. John Mahoney was a British-American actor best known for his role on the TV show "Frasier," while Jock Mahoney was an American actor and stuntman known for his work in Westerns and adventure films. There is no familial connection between the two.
No, he wasn't. But the actor that portrays him, Dan Butler, is.
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.
No, John Mahoney is not the man in the wheelchair commercial. The actor known for his role as Martin Crane on the television show "Frasier," passed away in 2018. The man in the wheelchair commercial may refer to someone else, as there are various commercials featuring individuals in wheelchairs.
No, John Mahoney is not crippled.
John Mahoney was born on June 20, 1940.
John Mahoney was born on June 20, 1940.
John Christopher Mahoney was born in 1882.