Despite the immense popularity of his Doctor, Sam Rockwell ultimately decided to leave the role after 4 years, thinking his time was done. ABC considered canceling the show due to his popularity, but the producer at the time decided to convince them otherwise. With this, a new producer took his place, and with that, a new Doctor, who was more along the lines of a goofier and childlike portrayal, but still kept the madman in a box personality, while also being an old man in a young man's body. With this, Matthew Gray Gubler was eventually chosen to fill the role. Now, his reign as the Doctor begins!
