‘Watson’ Stars Morris Chestnut and Rochelle Aytes on Watson and Mary’s Complicated Relationship

“They’re not done with each other yet,” executive producer Craig Sweeny says of the titular iconic doctor and his ex-wife in the new CBS drama.

Watson, following a special premiere in January, returns for its second episode in its regular time slot on February 16. After the first episode, we know that Dr. John Watson (Morris Chestnut) left behind his then-wife, Dr. Mary Morton (Rochelle Aytes), to join his friend and partner Sherlock Holmes; their work together ended when Sherlock and the villain Moriarty (revealed to be alive and played by Randall Park) fell at Reichenbach Falls. Sherlock is presumed dead. Watson, following the pair into the water, has been left with a traumatic brain injury. Now, Mary’s his boss as he works at a clinic funded by Sherlock Holmes with a team of fellows as they tackle medical mysteries. (But it’s not House 2.o.)