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 Shannon Purser Guest Star Craig Sweeny Executive Producer Aaron Kaplan Executive Producer Larry Teng Executive Producer Brian Morewitz Executive Producer Shäron Moalem Executive Producer Sallie Patrick Executive Producer Sharde Miller Writer Jason Inman Writer Jennifer Chambers Lynch Director