Dianna Agron kicked off her acting career in 2006, appearing on shows like "CSI: NY," "Drake & Josh," and "Veronica Mars." She started to break through after portraying Debbie Marshall on the NBC show "Heroes" in 2007, and following her success on the show, Agron landed the role of Quinn Fabray in the acclaimed musical series "Glee" from 2009 to 2015.

Outside of her prolific television career, the "Glee" star also found work in films and has acting credits in movies like "Burlesque," "The Family," "The Novitiate," and "As They Made Us." Her most recent work is in Hulu's sci-fi horror film "Clock," which hits the streamer on April 28.

Off screen, Agron is private about her personal life, including her romances. Currently, she appears to be dating Belgian painter Harold Ancart, whom she met in 2021. Most notably, the "Clock" actor was married to Mumford & Sons guitarist Winston Marshall from 2016 to 2020 and has been romantically linked to Nicholas Hoult and Australian actor Thomas Cocquerel.

Read on to learn about Agron's dating history!