| Fred Astaire | Tom Bowen |
| Van Johnson | Pied Piper/Truson |
| Claude Rains | Mayor of Hamelin |
| Jane Powell | Ellen Bowen |
| Lori Nelson | Maria |
| Peter Lawford | Lord John Brindale |
| Jim Backus | King's Emissary |
| Sarah Churchill | Anne Ashmond |
| Kay Starr | John's Mother |
| Keenan Wynn | Irving Klinger/Edgar Klinger |
| Stanley Adams | Second Counselor |
| Doodles Weaver | First Counselor |
Technical Credits
| Bretaigne Windust | Director |
| Stanley Donen | Director |