Holly Robinson Peete and Shaun Robinson's striking resemblance to each other, as well as their mother's (see photos below), made many people think that they are, but Holly and Shaun are not related.

Shaun's father is Wiley Robinson. She was born and raised in Detroit, Michigan.

Holly's dad is TV writer and 'Sesame Street' actor, Matthew Robinson. She was born on September 18, 1964 in Philadelphia, Pennsylvania.

Holly married Rodney Peete (a professional football player) on June 10, 1995.

We all know there are plenty of celebrity kids that bear striking resemblance to their parents and actual sets of twins in Hollywood, but some of the best star "twins" aren't related at all.

If you've ever done a double take while looking at Katy Perry and Zooey Deschanel, Jeffrey Dean Morgan and Javier Bardem, or Amy Adams and Isla Fisher, got the ultimate treat for you.

Here are 22 of the most mind-boggling look-alike stars who could totally pass as siblings.