<Li> James Cagney reprised the role of George M. Cohan in the movie The Seven Little Foys (1955), but agreed only on the condition that he receive no money--he did the film as a tribute to Eddie Foy . In Yankee Doodle Dandy, Eddie Foy, Jr. played the role of his own father . In The Seven Little Foys, Bob Hope portrayed Foy; Charley Foy (son of Eddie Foy, Jr .) served as a narrator . </Li> <Li> Actress Jeanne Cagney, who played the part of Cohan's sister, was James Cagney's real - life sister . Cagney's brother, William Cagney, was the Associate Producer of the film . </Li> <Li> Rosemary DeCamp, who played the mother of George M. Cohan, was, in fact, 11 years younger than Cagney . </Li> <Li> President Franklin D. Roosevelt was played by Captain Jack Young, a lookalike who is seen only from the back . An impressionist, Art Gilmore, provided the voice of Roosevelt, uncredited . Gilmore would narrate the Joe McDoakes film shorts produced by Warners, and became a well - known announcer on television through the 1970s . </Li>

Who played the mother in yankee doodle dandy