In a 1946 attempt to reach Broadway, Kerrigan starred as the discombobulated leprechaun Jackeen J. O'Malley the show Barnaby and Mr. O'Malley, based on the Crockett Johnson comic strip. The play was unsuccessful, completing only four performances.
Kerrigan starred in a Broadway play titled "Barnaby and Mr. O'Malley" in 1946, which was based on the Crockett Johnson comic strip. Despite her performance, the show only ran for four performances before closing.