"The Real Housewives of Beverly Hills" star Kim Richards knows it all too ... other cast mates -- including her sister, Kyle ...

Kim Richards was a child star, beginning acting before she turned one. She acted in several Disney films, such as No Deposit, No Return, Return from Witch Mountain, and Escape to Witch Mountain.

Kim Richards has been working in Hollywood since she was young. She was only a few months old when she landed her first modeling gig and became famous as a child actress in movies like Escape to ...