Warning: The following may contain possible spoilers for "Rogue One: A Star Wars Story"

Last week, actor Mads Mikkelsen surprisingly confirmed what had long been rumored about his mysterious character in Lucasfilm's "Rogue One: A Star Wars Story": He'll be playing the estranged father of Felicity Jones' main character, Jyn Erso. As if actual concrete information on a "Star Wars" project wasn't already groundbreaking enough, Mikkelsen continued to release welcomed morsels of information.

Speaking with a British publication, the veteran actor had an interesting tease for fans wondering what to expect from "Rogue One."

"When asked if Mark Hamill (Luke Skywalker), Carrie Fisher (Princess Leia) or member from the original trilogy had joined the cast on set, he said: 'Some of them - but I would reveal too much. There are iconic characters in our film and also characters you have never heard of. It's a mix""

There have been strong whispers that Darth Vader and Grand Moff Tarkin may have small roles in the film, but those have yet to be confirmed. It is unknown whom Mikkelsen is referring to when he speaks of "iconic characters," but it's encouraging to hear that "Rogue One" will have some connections to what came before it.

Beyond this juicy little tease, Mikkelsen also provided a little background on Jones' character.

"The Hannibal actor - who recently revealed he is playing the father of Jyn Erso (Felicity Jones) - said the Gareth Edwards-directed film will also feature flash backs to Jyn's childhood.

'I spend a lot of time with [Jones] and she's a wonderful actress. I play her dad at the time of Felicity and I play her dad when she's younger, so we jump back and forth in time."

It is rumored that Mikkelsen's character is also one of the key designers on the Death Star project, though that too has yet to be confirmed.

Regardless of the specific details, it sounds like the first "Star Wars" anthology standalone film will bring an exciting mix of both new and old to the table.

"Rogue One: A Star Wars Story" will arrive in theaters on Dec. 15, 2016.