You'll Find Out
1940The 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.
Acted in
Kay Kyser
as Himself
Peter Lorre
as Professor Karl Fenninger
Boris Karloff
as Judge Spencer Mainwaring
Bela Lugosi
as Prince Saliano
Helen Parrish
as Janis Bellacrest
Dennis O'Keefe
as Chuck Deems
Alma Kruger
as Aunt Margo Bellacrest
Joseph Eggenton
as Jurgen
Ginny Simms
as Herself
Harry Babbitt
as Himself
M.A. Bogue
as Ish Kabibble
Sully Mason
as Himself
Mary Bovard
as Mary (uncredited)
Jeff Corey
as Mr. Corey (uncredited)
Louise Currie
as Marion (uncredited)
Bess Flowers
as Lady In Taxi (uncredited)
Jeanne Houser
as Jean (uncredited)
Richard Kipling
as Script Man (uncredited)
Eleanor Lawson
as Ms. Gaby Lawson (uncredited)
Larry McGrath
as Apartment Complainer (uncredited)
Frank Mills
as Cabbie (uncredited)
Mimi Montaye
as Mimi (uncredited)
Dorothy Moore
as Penny (uncredited)
Leonard Mudie
as Real Karl Fenninger (uncredited)
Joseph North
as Servant (uncredited)
Frank O'Connor
as Apartment Responder (uncredited)
Beulah Parkington
as Mother (uncredited)
Jane Patten
as Jane (uncredited)
Eugenia Rafee
as French Maid (uncredited)
William Telaak
as Mac (uncredited)
Joan Warner
as Joan (uncredited)
Guy Webster
as Infant (uncredited)
Mary Martha Wood
as Georgia (uncredited)