Red Skelton
Ambrose C. Park
Cara Williams
Maggie Drumman
James Whitmore
Mr. Remlick, Lawyer
Kurt Kasznar
Louie
Dorothy Stickney
Emily Drumman
George Mathews
Duke Fargoh
Reginald Owen
Bainbridge Gibbons
Harry Bellaver
Herb
Connie Gilchrist
Blonde
Steven Geray
Van Goosen
Sig Arno
Mr. Sahutsky
G. Pat Collins
Nightwatchman Connelly (uncredited)
Ambrose C. Park, left on a park bench as an infant with an impulsive need to find his parents, is an assistant to a diamond cutter. Shyster lawyer Remlick, in a strategy to get a fabulous uncut diamond through Ambrose, arranges for Emily Drummon, Duke Fargoh and Maggie Drummon to pose as Ambrose's long-lost parents and sister. The diamond, through many comic situations, is acquired and the gang is going to have Ambrose cut the diamond, and relieve him of the two stones and his parental illusions at the same time. But Maggie, who has no taste for the deception, tips Ambrose off and a wild chase ensues. At the end, Ambrose is very happy as he can now marry his "sister."
