The Chicago native is best known for his work on "Happy Days," "Murder, She Wrote" and "Father Dowling Mysteries," as well as in the Broadway productions of "Fiorello!" and "Beauty & the Beast." His film credits include "Love With a Proper Stranger."
"We were a make-believe family for 10 years, and like a real family for over 30. He will be so, so missed," Bosley's former "Happy Days" co-star Henry Winkler told E! News.
"Mr. Tom Bosley will be missed by many. He was a great actor, teacher and man," Scott Baio, who also appeared on the sitcom, said via Twitter.
Bosley is survived by his wife Patricia Bosley; his brother Richard Bosley; his daughter Amy Baer; stepdaughters Kimberly diBonaventura and Jamie Van Meter; and seven grandchildren.