The actress, who plays strict accounts head Angela Martin in the comedy, said she couldn't confirm rumours about whether Ricky, who starred in and created the original show, was lined up to appear.
She said: "I can't confirm it but we would be out of our minds excited about that. You know, he's been able to stop now and then and it's great for us. We're such big fans of where the show started so I hope so!"
Neither did she reveal whether he would be coming back as his character David Brent.
She said: "I don't know and I would be the last to know because I'm kinda chatty and so I don't think they would want me to know. Because even at my best I'd be like, 'I'm not going to say anything to anyone on the red carpet!' and then I'd be like, 'Ricky comes back' and that would be it, I would tell someone that Ricky was back."
Angela added that she was proud of how far the US version has come.
She said: "It was a tall order. I loved the BBC version and then when I found out it was going to be made in the US I was like, 'No! It'll be ruined!' and so for us to sort of make it its own and to go as far as we have with it - I'm proud of it."