Robert "Bobby" Winckler (often credited as "Winkler"), was one of the most prolific child actors of the 1930s and 1940s.

Boy Delivering Flowers (uncredited)
1940
West Point Candidate (uncredited)
1948
Dave Porter
1947
Clark (uncredited)
1949
Young Boy (uncredited)
1938
Bud
1941
Boy Carrying Bags
1942
Murphy (uncredited)
1942
Urchin with Compact
1940
Jimmie (uncredited)
1942
Young Settler Boy
1939
Morgan's Son
1939
Jerry Garrett
1940
Orphan (uncredited)
1938
Undetermined Role (uncredited)
1939
Mush (uncredited)
1940
Tommy (uncredited)
1940
Radio Sonny (uncredited)
1943
Boy (uncredited)
1941
Boy on Ship (uncredited)
1939
Sammy Townley
1939
Newsboy
1940
Kid at Bomb
1941
Young Boy
1939
Newsboy (Uncredited)
1939
Willie Younger
1941
Newsboy (uncredited)
1939
Minor Role
1938
Young Boy
1938

Minor Role (uncredited)
1939
Tommy Scott
1940
Crippled Boy
1938
Wilbur Potter
1939
Boy
1940
Tom Cameron, as a Boy
1941
Fresh Kid
1941
Hans (speaking) (voice) (uncredited)
1938
Peter Parrot (voice) (uncredited)
1937
Tim Burke
1941