Made stage debut in Chicago production of "Golden Boy"

Appeared with Woodstock Summer Playhouse

Made Off-Broadway debut in "Thieves' Carnival"

Early TV appearance, "Alice in Wonderland"

Starred as "Fiorello!" on Broadway

Portrayed Teddy Brewster in "Hallmark Hall of Fame" version of "Arsenic and Old Lace"

Made feature film debut in "Love With the Proper Stranger"

Was regular player on "That Was the Week That Was"

Starred in US tour of "Luv"

Played title role in Broadway production of "The Education of H*Y*M*A*N K*A*P*L*A*N"

Cast as regular on the NBC sitcom "The Debbie Reynolds Show"

Was regular on "The Dean Martin Show" (NBC)

Made TV-movie debut, "A Step Out of Line" (CBS)

Played the boss on "The Sandy Duncan Show"

Provided voice of the father for the syndicated, animated series "Wait 'Til Your Father Gets Home"

Played Benjamin Franklin in "The Bastard" and its sequel, "The Rebels" (syndicated)

Played Howard Cunningham on the long-running ABC sitcom "Happy Days"

Had recurring role as Amos Tucker on "Murder, She Wrote" (CBS)

Played title role in the series "The Father Dowling Mysteries" (NBC, 1989; ABC, 1990-91)

Returned to Broadway as Belle's father in "Disney's Beauty and the Beast"

Headlined a US touring company of "Show Boat"