You'll Find Out
Plot: The manager of Kay Kyser’s band books them for a birthday party bash for an heiress at a spooky mansion, where sinister forces try to kill her.
Kay Kyser. Kay Kyser was 35 in You'll Find Out as 'Himself'.
Peter Lorre. Peter Lorre was 36 in You'll Find Out as 'Professor Karl Fenninger'.
Boris Karloff. Boris Karloff was 52 in You'll Find Out as 'Judge Spencer Mainwaring'.
Bela Lugosi. Bela Lugosi was 58 in You'll Find Out as 'Prince Saliano'.
Helen Parrish. Helen Parrish was 17 in You'll Find Out as 'Janis Bellacrest'.
Dennis O'Keefe. Dennis O'Keefe was 32 in You'll Find Out as 'Chuck Deems'.
Alma Kruger. Alma Kruger was 69 in You'll Find Out as 'Aunt Margo Bellacrest'.
Joseph Eggenton. Joseph Eggenton was 69 in You'll Find Out as 'Jurgen'.
Ginny Simms. Ginny Simms was 25 in You'll Find Out as 'Herself'.
Harry Babbitt. Harry Babbitt was 27 in You'll Find Out as 'Himself'.
M.A. Bogue. M.A. Bogue was 32 in You'll Find Out as 'Ish Kabibble'.
Sully Mason. Sully Mason was 34 in You'll Find Out as 'Himself'.
Mary Bovard. Mary Bovard was 22 in You'll Find Out as 'Mary (uncredited)'.
Jeff Corey. Jeff Corey was 26 in You'll Find Out as 'Mr. Corey (uncredited)'.
Louise Currie. Louise Currie was 27 in You'll Find Out as 'Marion (uncredited)'.
Bess Flowers. Bess Flowers was 41 in You'll Find Out as 'Lady In Taxi (uncredited)'.
Jeanne Houser. Jeanne Houser was >> in You'll Find Out as 'Jean (uncredited)'.
Richard Kipling. Richard Kipling was >> in You'll Find Out as 'Script Man (uncredited)'.
Eleanor Lawson. Eleanor Lawson was 64 in You'll Find Out as 'Ms. Gaby Lawson (uncredited)'.
Larry McGrath. Larry McGrath was 52 in You'll Find Out as 'Apartment Complainer (uncredited)'.
Frank Mills. Frank Mills was 49 in You'll Find Out as 'Cabbie (uncredited)'.
Mimi Montaye. Mimi Montaye was >> in You'll Find Out as 'Mimi (uncredited)'.
Dorothy Moore. Dorothy Moore was 21 in You'll Find Out as 'Penny (uncredited)'.
Leonard Mudie. Leonard Mudie was 57 in You'll Find Out as 'Real Karl Fenninger (uncredited)'.
Joseph North. Joseph North was >> in You'll Find Out as 'Servant (uncredited)'.
Frank O'Connor. Frank O'Connor was 59 in You'll Find Out as 'Apartment Responder (uncredited)'.
Beulah Parkington. Beulah Parkington was >> in You'll Find Out as 'Mother (uncredited)'.
Jane Patten. Jane Patten was >> in You'll Find Out as 'Jane (uncredited)'.
Eugenia Rafee. Eugenia Rafee was >> in You'll Find Out as 'French Maid (uncredited)'.
William Telaak. William Telaak was 42 in You'll Find Out as 'Mac (uncredited)'.
Joan Warner. Joan Warner was >> in You'll Find Out as 'Joan (uncredited)'.
Guy Webster. Guy Webster was >> in You'll Find Out as 'Infant (uncredited)'.
Mary Martha Wood. Mary Martha Wood was >> in You'll Find Out as 'Georgia (uncredited)'.
David Butler. David Butler was 45 in You'll Find Out as 'Director, Story, Producer'
Fred Fleck. Fred Fleck was 48 in You'll Find Out as 'Assistant Director'
James V. Kern. James V. Kern was 31 in You'll Find Out as 'Screenplay, Story'
Irene Morra. Irene Morra was 47 in You'll Find Out as 'Editor'
Edward Stevenson. Edward Stevenson was 34 in You'll Find Out as 'Costume Design'
Vernon L. Walker. Vernon L. Walker was 46 in You'll Find Out as 'Special Effects'