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We know when it comes to Deadpool 2, the Merc with the Mouth will be joined by Domino and Cable, but there’s been no word yet on other supporting characters. However, earlier today Steve Weintraub had an extended interview with writers Rhett Reese and Paul Wernick and learned that Negasonic and Colossus will be returning for the sequel:

PAUL WERNICK: I can’t say how much they are…

RHETT REESE: I think we can say. Yeah, they’ll be in the sequel.

WERNICK: Yeah, they’ll make at least an appearance.

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