William Powell ( William Powell )

Steve Ireland

Myrna Loy ( Myrna Loy )

Susan Ireland

Gail Patrick ( Gail Patrick )

Isobel Kimble Grayson

Jack Carson ( Jack Carson )

Ward Willoughby

Florence Bates ( Florence Bates )

Mrs. Cooper

Sidney Blackmer ( Sidney Blackmer )

Lawyer George Renny

Sig Ruman ( Sig Ruman )

Dr. Wuthering

Vladimir Sokoloff ( Vladimir Sokoloff )

Dr. David Klugle

Donald MacBride ( Donald MacBride )

'Pinky' Grayson

Sara Haden ( Sara Haden )

Miss Cecilia Landis

Kathleen Lockhart ( Kathleen Lockhart )

Mrs. Bristol

Fern Emmett ( Fern Emmett )

Martha - Ireland's Maid

Joseph Crehan ( Joseph Crehan )

Judge

George Meeker ( George Meeker )

Lawyer DeWest

Clarence Muse ( Clarence Muse )

Robert - Hat Check Man at Party

Elisha Cook Jr. ( Elisha Cook Jr. )

Joe (elevator operator)

Barbara Bedford ( Barbara Bedford )

Renny's Secretary (uncredited)

Aldrich Bowker ( Aldrich Bowker )

Jimmy - the Doorman (uncredited)

Edward Hearn ( Edward Hearn )

Policeman (uncredited)

George Irving ( George Irving )

Sanity Hearing Doctor (uncredited)

May McAvoy ( May McAvoy )

Sanity Hearing Secretary (uncredited)

Ian Wolfe ( Ian Wolfe )

Sanity Hearing Doctor (uncredited)

Wanda Perry ( Wanda Perry )

Party Guest (uncredited)

Richard Allen ( Richard Allen )

Private Investigator (uncredited)

Jimmy Ames ( Jimmy Ames )

Taxi Driver (uncredited)

Joan Barclay ( Joan Barclay )

Telephone Operator (uncredited)

Mary Bayless ( Mary Bayless )

Party Guest (uncredited)

Wilson Benge ( Wilson Benge )

Tom - Ward's Valet (uncredited)

Lulu Mae Bohrman ( Lulu Mae Bohrman )

Party Guest (uncredited)

Wade Boteler ( Wade Boteler )

Head Private Investigator (uncredited)

Ralph Brooks ( Ralph Brooks )

Party Guest (uncredited)

Francis X. Bushman Jr. ( Francis X. Bushman Jr. )

Uniformed Sanitarium Guard (uncredited)

Naomi Childers ( Naomi Childers )

Party Guest (uncredited)

Ken Christy ( Ken Christy )

Uniformed Sanitarium Guard (uncredited)

Oliver Cross ( Oliver Cross )

Party Guest (uncredited)

Sayre Dearing ( Sayre Dearing )

Party Guest (uncredited)

Dan Dowling ( Dan Dowling )

Party Guest (uncredited)

Jay Eaton ( Jay Eaton )

Party Guest Getting Rake (uncredited)

Harry Fleischmann ( Harry Fleischmann )

Taxi Driver (uncredited)

Pat Gleason ( Pat Gleason )

Philadelphia Private Investigator (uncredited)

George Golden ( George Golden )

Party Guest (uncredited)

Roy Gordon ( Roy Gordon )

Sanity Hearing Doctor (uncredited)

Jesse Graves ( Jesse Graves )

Bristol's Butler (uncredited)

George Guhl ( George Guhl )

First Taxi Driver (uncredited)

Stuart Hall ( Stuart Hall )

Party Guest (uncredited)

Mahlon Hamilton ( Mahlon Hamilton )

Party Guest (uncredited)

Eddie Hart ( Eddie Hart )

Detroit Private Investigator (uncredited)

Selmer Jackson ( Selmer Jackson )

Doctor at Susan's Apartment (uncredited)

Richard Kipling ( Richard Kipling )

Party Guest (uncredited)

William Lally ( William Lally )

Sanitarium Guard (uncredited)

George Lollier ( George Lollier )

Lake Placid Private Investigator (uncredited)

George Magrill ( George Magrill )

Sanitarium Guard (uncredited)

Philo McCullough ( Philo McCullough )

Cleveland Private Investigator (uncredited)

Charles McMurphy ( Charles McMurphy )

Private Investigator (uncredited)

James H. McNamara ( James H. McNamara )

Party Guest (uncredited)

James Millican ( James Millican )

Miami Private Investigator (uncredited)

Jack Mulhall ( Jack Mulhall )

Court Clerk (uncredited)

Spec O'Donnell ( Spec O'Donnell )

Anniversary Singer (uncredited)

Broderick O'Farrell ( Broderick O'Farrell )

Party Guest (uncredited)

Paul Palmer ( Paul Palmer )

Private Investigator (uncredited)

Edward Peil Sr. ( Edward Peil Sr. )

Sun Valley Private Investigator (uncredited)

Lee Phelps ( Lee Phelps )

Uniformed Sanitarium Guard (uncredited)

James Pierce ( James Pierce )

San Francisco Private Investigator (uncredited)

Paul Power ( Paul Power )

Party Guest (uncredited)

Bert Roach ( Bert Roach )

Front Desk Clerk (uncredited)

Ky Robinson ( Ky Robinson )

Cincinnati Private Investigator (uncredited)

Byron Shores ( Byron Shores )

Sanity Hearing Doctor (uncredited)

Larry Steers ( Larry Steers )

Party Guest Whose Hat is Floating (uncredited)

Rudolf Steinboeck ( Rudolf Steinboeck )

Private Investigator (uncredited)

Harry Strang ( Harry Strang )

Police Sgt. Payson (uncredited)

Brick Sullivan ( Brick Sullivan )

Policeman (uncredited)

William Tannen ( William Tannen )

Sanitarium Attendant (uncredited)

Edward Van Sloan ( Edward Van Sloan )

Sanity Hearing Doctor (uncredited)

Emmett Vogan ( Emmett Vogan )

Doctor at Susan's Apartment (uncredited)

Douglas Wood ( Douglas Wood )

Sanity Hearing Doctor (uncredited)

Catherine Price ( Catherine Price )