Scott Baio as Bugsy Malone

Jodie Foster as Tallulah

Florrie Dugger as Blousey

John Cassisi as Fat Sam

Martin Lev as Dandy Dan

Paul Murphy as Leroy Smith

Sheridan Earl Russell as Knuckles

Albin 'Humpty' Jenkins as Fizzy

Paul Chirelstein as Smolsky

Andrew Paul as O'Dreary

Davidson Knight as Cagey Joe

Michael Jackson as Razamataz

Jeff Stevenson as Louis

Peter Holder as Ritzy

Donald Waugh as Snake Eyes

Michael Kirkby as Angelo

Jon Zebrowski as Shoulders

Jorge Valdez as Bronx Charlie

John Rafter Lee as Benny Lee

Dexter Fletcher as Baby Face

Bonnie Langford as Lena Marelli

Louise English as Ballet Dancer

Mark Curry as Producer

Vivienne McKone as Velma

Helen Corran as Bangles

Lynn Aulbaugh as Louella

Kathy Spaulding as Lorretta

Phil Daniels as Waiter Who Spills Spaghetti

John Williams as Robert 'Roxy' Robinson

Julie K. Smith as (uncredited)