It's hard to believe, but it's been almost 20 years since Lindsay Lohan starred in her first ever big movie role, The Parent Trap.

Not only did Lindsay totally nail her performance, she had to play two parts: Annie and Hallie, twins who were separated at birth and each raised by one of their parents. The characters secretly switch places after meeting at summer camp; hence, "the parent trap."

The starlet's turn in the 1998 reboot of the classic film was career-making. It showed the world her serious acting talents! Today, she's making headlines for other things besides her killer roles, and we've seen her date some of Hollywood's hottest men. But what about the rest of the cast?

Sadly, some of the main characters have passed away, while others are still thriving in the industry. Plus, there's one character who has a secret even the biggest fans of the movie may have never known about! (Hint: He's related to Lindsay — and you probably had no idea.)

Click through the gallery to see each cast member's transformation. Which one shocked you the most?

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