Like his That '70s Show co-stars Ashton Kutcher and Mila Kunis, Topher is also gearing up to tie the knot.
Following news of their engagement, the couple showed up together at the Art of Elysium's Heaven Gala in Santa Monica, Calif., and ran into Topher's on-screen love interest from That '70s Show, Laura Prepon.
Since the sitcom ended in 2006, Topher has gone on to star in several other popular TV series. He had a role on ABC's Agent Carter, HBO's True Blood and is set to appear in season 2 of True Detective. As for his new fiancee, she'll be starring in the musical comedy One Shot alongside Anne Heche, Rob Riggle and Taye Diggs.
Congrats to Topher and Ashley!
One couple everyone was talking about on Sunday was George Clooney and his new wife Amal Alamuddin. Here's a look at his heartwarming speech at the 2015 Golden Globes where he calls out the love of his life.