However, we can say that he was deeply passionate about:
* Acting: This was, of course, his career, but he was fiercely dedicated to his craft and spent countless hours studying and practicing.
* Cars: Dean was a car enthusiast and owned several vehicles, particularly sports cars. He was known for his love of speed and his ability to drive.
* Photography: He enjoyed taking photographs and capturing the world around him. Some of his work even made it into magazines.
* Music: He was a fan of jazz and blues music. He was also known to play the guitar and harmonica.
It's hard to say what was Dean's absolute favorite hobby because he was passionate about so many things. Perhaps the best answer is that living life to the fullest was his favorite hobby. He embraced every experience and lived life on his own terms.