As it turns out, tennis isn't the only thing Serena Williams thought about pursuing when she was young. As she explained to Oprah, she and her sister Venus Williams have always been interested in acting. Apparently, the young girls used to put on plays for their parents. "Serena was always the princess, and I was the warrior," Venus recalled.

Even as an adult, Serena has remained keen on acting. In fact, she's even done it professionally. She has appeared in "My Wife and Kids," "Street Time," "Law & Order," "The Division," "ER," "Drop Dead Diva," and several other productions. Plus, she's played herself in numerous shows and movies, including "The Simpsons," "Ocean's 8," and "Pixels," not to mention two Beyoncé music videos (via IMDb).

As Serena told Oprah, she's keen to do more acting, but that, alongside a professional tennis career, it's not always easy to find the time.