Some of them still played a couple after the breakup!
Just like some people date their classmates or coworkers, actors often date their costars. On the set of a long-running TV show, several costar relationships might be happening at the same time.
Here are 13 TV show casts where multiple costars were dating:
Riverdale costars Cole Sprouse and Lili Reinhart dated from 2017–2020.
Camila Mendes and Charles Melton dated from 2018–2019 then got back together in 2021.
High School Musical: The Musical: The Series costars Frankie Rodriguez and Joe Serafini confirmed their relationship in 2021.
Olivia Rodrigo and Joshua Bassett never confirmed their romantic involvement, but it’s been widely speculated that they were involved between 2019–2020.
Saved by the Bell costars Mark-Paul Gosselaar and Elizabeth Berkley dated at some point during filming, which he confirmed in 2019.
Mark-Paul Gosselaar also dated Lark Voorhies for three years toward the end of the show’s run.
Tiffani Thiessen and Mario Lopez also dated during their time at Bayside High, but their relationship ended because he cheated on her.
The Vampire Diaries lead actors Nina Dobrev and Ian Somerhalder dated from 2011–2013, and they’ve remained friends since.
Paul Wesley and Torrey DeVitto were already married when she joined the cast in 2012, but they divorced a year later.
Then, Paul Wesley dated Phoebe Tonkin from 2013–2017.
It’s Always Sunny in Philadelphia costars Mary Elizabeth Ellis and Charlie Day have been married since 2006.
Kaitlin Olson and Rob McElhenney got married in 2008.
Once Upon a Time costars Ginnifer Goodwin and Josh Dallas got married in 2014.
Jennifer Morrison and Sebastian Stan dated from 2012–2013.
Parks and Recreation costars Nick Offerman and Megan Mullally have been married since 2003.
Amy Poehler and guest star Nick Kroll dated from 2013–2015.
Fargo costars Mary Elizabeth Winstead and Ewan McGregor have been together since 2017.
Kirsten Dunst and Jesse Plemons got engaged the same year.
Felicity costars Keri Russell and Scott Speedman quietly dated for several years during the show’s run.
Jennifer Garner and Scott Foley met on set, got married in 2000, and divorced in 2004.
Liv and Maddie costars Dove Cameron and Ryan McCartan dated from 2013–2016 and were briefly engaged.
Audrey Whitby and Joey Bragg have been together since he guest-starred on AwesomenessTV in 2013. She had a minor role on Liv and Maddie from 2015–2016.
Lost costars Evangeline Lilly and Dominic Monaghan dated from 2004–2007, and he later alleged that she cheated on him.
Ian Somerhalder and Maggie Grace reportedly dated from 2006–2007 after their characters were killed off the show.
Supernatural costars Jared Padalecki and Genevieve Cortese met on set in 2008 and got married in 2010.
Jensen Ackles and Danneel Harris have been married since 2010, and she guest-starred on the show from 2018–2020.
Gossip Girl costars Blake Lively and Penn Badgley were together from about 2007–2010.
And finally, Leighton Meester and Sebastian Stan dated from 2008–2010.