Morris Chestnut Dr. John Watson Actor, Executive Producer Eve Harlow Dr. Ingrid Derian Actor Peter Mark Kendall Dr. Stephens Croft, Dr. Adam Croft Actor Ritchie Coster Shinwell Johnson Actor Inga Schlingmann Dr. Sasha Lubbock Actor Rochelle Aytes Dr. Mary Morstan Actor Robert Carlyle Sherlock Holmes Guest Star Tika Sumpter Laila Guest Star Craig Sweeny Executive Producer, Writer Aaron Kaplan Executive Producer Larry Teng Executive Producer, Director Brian Morewitz Executive Producer Shäron Moalem Executive Producer, Writer Sallie Patrick Executive Producer