Fans of Supernatural and Doctor Who have noticed similarities between some of the characters from both shows. For example, Lucifer and the Master are both iconic villains with a dark sense of humor. Castiel and Rory Williams are both often the butt of jokes and are more sensible than their respective partners. Sam Winchester and Clara Oswald are quieter but quick-witted and have a tendency to die and come back to life. While there is no official Superwholock crossover in the works, fans can still hope for the possibility of these beloved characters crossing paths.