Norman Z. McLeod	...	(Director)
Ben Hecht, Charles Lederer	...	(Writer)
Groucho Marx	...
Harpo Marx	...
Chico Marx	...
Zeppo Marx	...
Cary Grant	...	Dr. Barnaby Fulton
Ginger Rogers	...	Mrs. Edwina Fulton
Charles Coburn	...	Mr. Oliver Oxley
Marilyn Monroe	...	Miss Lois Laurel
Hugh Marlowe	...	Hank Entwhistle
Henri Letondal	...	Dr. Jerome Kitzel
Robert Cornthwaite	...	Dr. Zoldeck
Larry Keating	...	G.J. Culverly
Douglas Spencer	...	Dr. Brunner
Esther Dale	...	Mrs. Rhinelander
George Winslow	...	Little Indian

Summary: From the opening credits to the escape from the boat this comedy is among the most frenetic and stunningly funny film ever made.
After the boat journey the pace slows down but still retains some classic dialogue.A true classic