Lost‘s Henry Ian Cusick is appearing in tomorrow night’s anticipated 19th episode of the season, “Letters of Transit.” In a new interview he teases his role!

Speaking to TV Line, Cusick reveals that he and fellow guest star Georgina Haig will be playing federal agents in the year 2036. He says:

I can tell you that I do most of my scenes with Georgina and John Noble, who is a phenomenal actor, and it was a great experience. It’s similar to Lost in that it’s high-stakes life-and-death stuff… a very exciting episode to work on.

He again references Lost when discussing whether he could possibly be brought back to Fringe:

That show is like Lost in that it can go any which way, so yes.

Read the full interview, where Cusick also talks about his role on Scandal, on TV Line.