[2] Walcott co-starred and made appearances in films, such as, Honeymoon in Bali, The Great Hospital Mystery, The Storm, Borrowing Trouble, Western Jamboree, The Great Victor Herbert, The Mandarin Mystery and The Forgotten Woman.

[4] Walcott played the role of actress, model and dancer Barbara Stanwyck's character brother "Charlie Martin" in the 1937 film Stella Dallas.

[4][6] He also co-starred in the 1938 film Cocoanut Grove, where Walcott played the role of "Tony Wonder" and starred with Fred MacMurray and Harriet Nelson.

[7] He appeared in the films Sailor's Lady, Submarine Raider, The Man Who Wouldn't Talk, Rhythm on the River and Buck Benny Rides Again.

[4] Walcott retired from acting after World War II when he lost one of his legs,[8] and worked as manager of United Artists theatres.