Dewey Robinson

A New York inventor needs cash to develop his big idea, so his adoring wife decides to raise it by divorcing him and marrying an eccentric Florida millionaire with a capricious high-society sister.

Alvin Corwin is low man on the totem pole, and goes from one mishap to another at an army training camp in World War II.

Hoppy is an agent of the federal government investigating the counterfeiting of both U.S. and Mexican money. His only clues are the name "Mordigan" and a drawing of a comet.