Gene Wilder as Willy Wonka

Peter Ostrum as Charlie Bucket

Jack Albertson as Grandpa Joe

Michael Bollner as Augustus Gloop

Julie Dawn Cole as Veruca Salt

Denise Nickerson as Violet Beauregarde

Paris Themmen as Mike Teevee

Nora Denney as Mrs. Teevee

Roy Kinnear as Mr. Salt

Leonard Stone as Mr. Beauregarde

Ursula Reit as Mrs. Gloop

Günter Meisner as Mr. Slugworth

Diana Sowle as Mrs. Bucket

Aubrey Woods as Bill

David Battley as Mr. Turkentine

Peter Capell as The Tinker

Werner Heyking as Mr. Jopeck

Peter Stuart as Winkelmann

Franziska Liebing as Grandma Josephine (uncredited)

Ernst Ziegler as Grandpa George (uncredited)

Dora Altmann as Grandma Georgina (uncredited)

Pat Coombs as Henrietta Salt (uncredited)

Michael Goodliffe as Mr. Teevee (uncredited)

Kurt Großkurth as Mr. Gloop (uncredited)

Stephen Dunne as Stanley Kael (uncredited)

Madeline Stuart as Madeline Durkin (uncredited)

Gloria Manon as Mrs. Curtis (uncredited)

Walker Edmiston as Mr. Slugworth (uncredited)

Victor Beaumont as Doctor (uncredited)

Tim Brooke-Taylor as Computer Scientist (uncredited)

Jack Latham as First Newscaster (uncredited)

Michael Gahr as Reporter in Germany (uncredited)

Ed Peck as FBI Agent (uncredited)

Frank Delfino as Auctioneer (uncredited)

Malcolm Dixon as Oompa Loompa (uncredited)

George Claydon as Oompa Loompa (uncredited)

Rusty Goffe as Oompa Loompa (uncredited)

Ismed Hassan as Oompa Loompa (uncredited)

Norman McGlen as Oompa Loompa (uncredited)

Angelo Muscat as Oompa Loompa (uncredited)

Pepi Poupee as Oompa Loompa (uncredited)

Marcus Powell as Oompa Loompa (uncredited)

Albert Wilkinson as Oompa Loompa (uncredited)