Johnny Duncan

Spartaküs

1960 · Beheaded Man (uncredited)

Denizde İsyan

1954 · Sailor

Kanlı Hücum

1953 · Gang Member (uncredited)

Uzaylıların 9 Numaralı Planı

1957 · Second Stretcher Bearer (uncredited)

Thirty Seconds Over Tokyo

1944 · Jitterbugger (uncredited)

Summer Stock

1950 · Stock Company Member (uncredited)

Whirlpool

1950 · Soldier (uncredited)

Johnny O'Clock

1947 · Newsboy

Kuzey Atlantik'e Hareket

1943 · Sailor (uncredited)

Take One False Step

1949 · Bellhop (uncredited)

When Willie Comes Marching Home

1950 · Soldier (uncredited)

Walk Softly, Stranger

1950 · Office Messenger (uncredited)

It Had to Be You

1947 · Vendor (uncredited)

Batman and Robin

1949 · Robin / Dick Grayson

Salty O'Rourke

1945 · Ralph (uncredited)

From This Day Forward

1946 · Young Lieutenant

The Mystery of the 13th Guest

1943 · Harold Morgan (as John Duncan)

Swing Fever

1943 · Dancer, USO Sailor (uncredited)

Rock Around the Clock

1956 · Prom Dancer (uncredited)

The Gang's All Here

1943 · Jitterbug Dancer (uncredited)

He Ran All the Way

1951 · Boy at Pool (uncredited)

Mr. Muggs Rides Again

1945 · Squeegie Robinson

The Walls Came Tumbling Down

1946 · Bellboy

The Unknown Guest

1943 · Teenager at Carnival (uncredited)