Let's face it: Amanda Tapping's shoes are difficult to fill. She's a great actress and a popular character on 'Stargate'; she's just a lovely person.
After 'Star Trek,' I was the commander on 'Stargate Atlantis,' the final season, and once my character had become a good commander, I was sorry that the show didn't last beyond that.
If you're looking at my other major science fiction roles - the Doctor on 'Star Trek' and certainly Woolsey on 'Stargate' - I often play characters that might be good theorists and good thinkers, but you wouldn't call either of them very macho characters.
'Trek' is probably more cerebral and philosophical. 'Stargate' does seat-of-the-pants adventure and humor better.
I didn't realize it at first, but the Doctor is in the same spirit as those natural 'outsider' characters 'Star Trek' series have, like Spock and Data.
It was hard to make a living as an actor in New York if you did not do soap operas or commercials.