In 1921, Kammerer adopted the stage name Jack Cameron. Around this time, he was offered a string of lead roles in New York City burlesques. He appeared in Sliding Billy Watson's
World of Frolics, Eddie Dowling's
Hello Miss Radio, and Fred Clark's
Let’s Go. In 1923, Cameron was cast as a principal in
Charles Waldron’s
Bostonians. The show earned mixed reviews, but Cameron was a stand out. Alfred Nelson, theatre critic for
Billboard, referred to Cameron as “a singer, dancer, and versatile actor of remarkable ability.”
Variety noted that the audience "couldn't get enough" of Cameron's baritone.
Bostonians also marked the first artistic collaboration between Cameron and the youthful singer, Leo Lee. After
Bostonians, Cameron was cast as the principal comedian in vaudeville producer Charles B. Maddock's
Tramp, Tramp, Tramp: A Song of the Road, book by
Ballard MacDonald.
Tramp paired Cameron once again with Leo Lee, along with six supporting male performers. The men played singing hobos, thrown together by fate in a camp beside a railroad track. The show was a hit and toured nationally on the Keith-Albee Circuit between 1925 and 1927. Cameron's character was true to life: he played an aging burlesque clown by the name of “Joe King.” During the opening scenes of Applause, Cameron's comedic and acrobatic abilities are on full display, with shots of Cameron clowning-around and backflipping across the sound stage. Joe King disappears from the story after making an unsuccessful offer of marriage to Kitty Darling, played by Helen Morgan. Cameron appeared in two subsequent motion pictures:
The Spy (1929) with Tom Howard, directed by Monte Brice, and
Little Lord Fauntleroy (1936) with Mickey Rooney, directed by
John Cromwell. ==Later years==