Henry Koster Director Clifton Webb John Philip Sousa Actor Debra Paget Lily Becker Actor Robert Wagner Willie Little Actor Ruth Hussey Jennie Sousa Actor Finlay Currie Col. Randolph Actor Benay Venuta Madame Bernsdorff-Mueller Actor Roy Roberts Maj. George Porter Houston Actor Thomas Henry David Blakely Actor Lester Matthews Mr. Pickering Actor Maudie Prickett Thelma Actor Erno Verebes Organ Grinder Actor Richard Garrick Secretary of the Navy Actor Romo Vincent Lily's Italian Music Tutor Actor Roy Gordon President Benjamin Harrison Actor Lamar Trotti Producer, Screenwriter Alfred Newman Original Music Charles G. Clarke Cinematographer James B. Clark Film Editing Lyle R. Wheeler Art Director Joseph C. Wright Art Director Claude E. Carpenter Set Decoration Thomas Little Set Decoration Dorothy Jeakins Costume Design