John Barrymore

Sherlock Holmes

Roland Young

Dr. Watson

Carol Dempster

Alice Faulkner

Gustav von Seyffertitz

Professor Moriarty

Louis Wolheim

Craigin

Percy Knight

Sid Jones

William Powell

Forman Wells

Hedda Hopper

Madge Larrabee

Reginald Denny

Prince Alexis

Peggy Bayfield

Rose Faulkner

Lumsden Hare

Dr. Leighton

Anders Randolf

James Larrabee

Robert Schable

Alf Bassick

David Torrence

Count Von Stalburg

Albert Bruning

Baron Orlonieff

Albert Parker