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Some might call it a huge boost in his career, but for Callum Keith Rennie, it's practically a trip home.

The actor, best known to fans as the Cylon Leoben on "Battlestar Galactica," has signed on for "X-Files 2" in a yet-to-be-announced role, according to Variety.

Rennie is making a big return to the franchise, one he had a guest spot in during the show's early years as The Groundskeeper in "Fresh Bones." However, Rennie could've had his big break since he was originally offered the role of the recurring Alex Krycek ... a role he would turn down, according to Cinematical. When he turned it down, he suggested to the producers they cast Nicolas Lea for the role, which they did.

Rennie's part on the show took place when the series was filmed in Vancouver, B.C, Rennie's work base. The show would later move to Los Angeles as well as the 1998 movie, but this production marks a return of the franchise to its Canadian roots.

Rennie has had a number of higher profile guest spots this past television season including "Bionic Woman" on NBC and "Tin Man" on SciFi Channel.

Rennie will be joined by British actor Adam Godley in yet another role that has not been publicly announced.

The new film was written by series creator Chris Carter as well as former executive producer Frank Spotnitz, and is being directed by Carter. It will mark the return of David Duchovny as Fox Mulder and Gillian Anderson as Dana Scully. It also will star Billy Connolly, Amanda Peet and Xzibit.

Shooting has already begun in Canada, set for a July release, nearly 10 years after the previous big screen outing for Spooky and the Doc.

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