Say which and if you think you could survive the seasons of the show. Where your placed depends on your skills. If you have little or no special training, you will be a redshirt (one of the unnamed that is sent to get killed on away missions).
Benjamin Sisko: All seasons. Star Trek universe DS9.
Dylan Hunt: Andromeda. All seasons of show. Andromeda universe.
Batman: Don't ask me how he got a Klingon BOP. But he did. Universe is set in Star Wars though. The old trilogy with Vader.
Picard: Has the enterprise D in the Star Wars Universe during old trilogy. Same time as Batman.