Van Johnson

Pied Piper / Truson

Claude Rains

Mayor of Hamelin

Lori Nelson

Mara

Jim Backus

King's Emissary

Kay Starr

John's Mother

Joseph Sargent

Doodles Weaver

First Counselor (uncredited)

Stanley Adams

Second Counselor (uncredited)

Oliver Blake

Leading Citizen (uncredited)

Rene Kroper

Paul (uncredited)

William H. O'Brien

Townsman (uncredited)

Carl Benton Reid

Mayor of Hamelout (uncredited)

Amzie Strickland

Leading Townswoman (uncredited)

Judith Woodbury

Townswoman (uncredited)

Cyril Delevanti

James Gonzalez

Citizen

Jess Kirkpatrick