Henry Winkler, who played The Fonz in Happy Days, paid tribute to the actor.
"He was our television father on the sound stage, but a father figure in real life," he said.
"He was a loving husband, a doting father and a fantastic grandfather. He will be so missed but never forgotten by the Winkler Family or the world."
Film director Ron Howard, who played Bosley's son in the show, said: "Tom's insight, talent, strength of character and comic timing made him a vital central figure in the Happy Days experience.
"A great father and husband, and a wonderful artist, Tom led by example, and made us all laugh while he was doing it.
"My last conversations with Tom reflected the love of life and peace of mind that he always maintained throughout his full and rewarding life. I miss him already."
Marion Ross, who played his wife Marion Cunningham on the show for 11 years, said: "He was so smart he could fix the end of a joke or a scene on the spot.
"We made a perfect couple. I played piccolo to his tuba."
Henry Winkler, who played The Fonz in Happy Days, paid tribute to the actor.
"He was our television father on the sound stage, but a father figure in real life," he said.
"He was a loving husband, a doting father and a fantastic grandfather. He will be so missed but never forgotten by the Winkler Family or the world."
Film director Ron Howard, who played Bosley's son in the show, said: "Tom's insight, talent, strength of character and comic timing made him a vital central figure in the Happy Days experience.
"A great father and husband, and a wonderful artist, Tom led by example, and made us all laugh while he was doing it.
"My last conversations with Tom reflected the love of life and peace of mind that he always maintained throughout his full and rewarding life. I miss him already."
Marion Ross, who played his wife Marion Cunningham on the show for 11 years, said: "He was so smart he could fix the end of a joke or a scene on the spot.
"We made a perfect couple. I played piccolo to his tuba."