This is the sweetest! In an exclusive interview with Closer Weekly, Knightfall star Tom Cullen revealed what he misses the most from his Downton Abbey days — and that’s working with his former co-star, Maggie Smith.

“We got along and she is just a hoot. I’m in touch with most people from the show but unfortunately, not Maggie. She’s too cool to be in touch with me, but I’ve got some great stories about her. She’s very fun,” he said during a Facebook Live on Wednesday. However, he got to work with some of the other cast members on his new History channel series, Knightfall.

maggie smith getty images

(Photo Credit: Getty Images)

“We’ve got Mr. Carson, Jim Carter in Knightfall playing the Pope so it was wonderful to reconnect with him and Julian Ovenden, who played my love rival — he also plays my rival in Knightfall and he is SO GOOD in Knightfall,” Tom shared. “He’s like, my favorite character. I actually got to look Jim Carter in the eyes because he’s not playing the butler anymore, so that was quite nice. He has beautiful eyes.”

Tom couldn’t be more excited about his latest project. “It’s a very big show, very high-octane, a lot of fun, it doesn’t take itself too seriously. It’s a very entertaining show,” he explained. “It’s about the Knight’s Templar. If you don’t know who they are, they’re this very fascinating medieval warrior monk sect — so they are monks but they’re warriors. They’re some of the most elite fighting forces at the time. Myth tells us they were in charge of looking after the Holy Grail, and so the show is set in Paris in 1306, and it’s about the relationship between the King of France at the time and the Templars — and it’s kind of an in-depth look into the politics and into this sect. It’s cool.”

Knightfall airs on Wednesday nights at 10 p.m. EST on the History channel.

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