| Year | Award | Category | Work | Result |
| 1970 | Tony Award | Best Performance by a Featured Actor in a Musical | Coco | Nominated |
| 1974 | Drama Desk Award | Outstanding Performance | My Fat Friend | Won |
| 1974 | Outer Critics Circle Award | Outstanding Actor in a Musical | My Fat Friend | Won |
| 1975 | Tony Award | Best Performance by a Featured Actor in a Play | My Fat Friend | Nominated |
| 1976 | Tony Award | Best Performance by a Leading Actor in a Musical | My Fair Lady | Won |
| 1976 | Drama Desk Award | Outstanding Featured Actor in a Musical | My Fair Lady | Won |
| 1977 | Drama Desk Award | Outstanding Featured Actor in a Musical | She Loves Me | Nominated |
| 1979 | Drama Desk Award | Outstanding Featured Actor in a Play | The Kingfisher | Won |
| 1981 | Tony Award | Best Performance by a Leading Actor in a Musical | The Pirates of Penzance | Nominated |
| 1981 | Drama Desk Award | Outstanding Actor in a Musical | The Pirates of Penzance | Nominated |
| 1986 | Tony Award | Best Performance by a Leading Actor in a Musical | Drood | Won |
| 1986 | Drama Desk Award | Outstanding Actor in a Musical | Drood | Won |