Katherine Heigl, Maureen McCormick, and More Stars Who Dated Their On-Screen Family Members
On-screen siblings like Marcia and Greg Brady may be the definition of family goals, but their real-life chemistry wasn't as innocent as the one we saw on TV! It turns out Maureen McCormick and Barry Williams had a romantic relationship — and they aren't the only ones who found love with their fictional family members!
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Click through the gallery to see which other stars have dated their on-screen family members in real life!
![Roswell katherine jason](https://www.closerweekly.com/wp-content/uploads/2016/11/roswell-katherine-jason.png?fit=703%2C475&quality=86&strip=all)
The WB
![Parenthood](https://www.closerweekly.com/wp-content/uploads/2016/11/parenthood.jpg?fit=800%2C936&quality=86&strip=all)
Getty Images
![Everwood emiy chris](https://www.closerweekly.com/wp-content/uploads/2016/11/everwood-emiy-chris.png?fit=800%2C539&quality=86&strip=all)
The WB
![Brady bunch marcia greg](https://www.closerweekly.com/wp-content/uploads/2016/11/brady-bunch-marcia-greg.jpg?fit=800%2C1061&quality=86&strip=all)
Getty Images
![Nip tuck joely john](https://www.closerweekly.com/wp-content/uploads/2016/11/nip-tuck-joely-john.jpg?fit=560%2C500&quality=86&strip=all)
FX
![Heroes claire peter](https://www.closerweekly.com/wp-content/uploads/2016/11/heroes-claire-peter.jpg?fit=800%2C534&quality=86&strip=all)
NBC
![Dexter debra](https://www.closerweekly.com/wp-content/uploads/2016/11/dexter-debra.jpg?fit=557%2C600&quality=86&strip=all)
Showtime
![Meet the browns david tamela](https://www.closerweekly.com/wp-content/uploads/2016/11/meet-the-browns-david-tamela.jpg?fit=800%2C744&quality=86&strip=all)
TBS
![Ferris bueller](https://www.closerweekly.com/wp-content/uploads/2016/11/ferris-bueller.jpg?fit=800%2C928&quality=86&strip=all)
Paramount Pictures
![Lost ian maggie](https://www.closerweekly.com/wp-content/uploads/2016/11/lost-ian-maggie.jpg?fit=800%2C533&quality=86&strip=all)
Getty Images
![Beverly hills shannen jason](https://www.closerweekly.com/wp-content/uploads/2016/11/beverly-hills-shannen-jason.jpg?fit=236%2C351&quality=86&strip=all)
FOX
![Susan dey david cassidy the partridge family](https://www.closerweekly.com/wp-content/uploads/2016/11/susan-dey-david-cassidy-the-partridge-family.jpg?fit=800%2C533&quality=86&strip=all)
ABC
![Threes company suzanne somers 7](https://www.closerweekly.com/wp-content/uploads/2016/11/threes-company-suzanne-somers-7.jpg?fit=627%2C500&quality=86&strip=all)
Getty Images