The cast of The Riddle of the Silk Stockings - 1915 includes: King Baggot as King Cole Jane Gail as Jane Clark Ned Reardon as Jefferson Spangler Frank Smith as Frank Swartz
The cast of A Riddle of Steel - 2011 includes: Terry Laborde
The cast of The Shark Riddle - 2011 includes: Laura Sams
The cast of The Riddle Trail - 1928 includes: Cliff Lyons
The cast of Black Stockings - 2012 includes: Janet Roth as "Woman"
The cast of Silk Stockings - 1920 includes: Lillian Biron George Ovey
The cast of The Answer to the Lost Riddle - 2009 includes: Michael Hoggard as Himself - Host
The cast of Riddle of the Black Cat - 2012 includes: Tom Fiske as Prisoner X
The cast of The Riddle - 2006 includes: Guy Birtwhistle Witley Jordan Cassedy Spencer Mimi Vasser
The cast of Numskull - 2009 includes: George Riddle as Grandpa
The cast of The Riddle of Pompeii - 2000 includes: Haraldur Sigurdsson as Himself (Volcanologist, University of Rhode Island)
The cast of The Spirit Gallery - 1995 includes: Holly Riddle
The cast of Through That Door - 2012 includes: Patrick Riddle