I've been really fortunate to go from series to series to series.

Cast changes are a hard thing. For two years, we had this little family. We weren't together when these changes were decided upon. It all happened during our hiatus.

If you watch the show and the characters don't look at each other while they're talking, the actors probably aren't getting along.

We take the show very seriously, but we don't take ourselves seriously.

There are a lot of great actresses out there. You learn to appreciate each one for what they offer.

In the beginning, people think vulnerability will make you weak, but it does the opposite. It shows you're strong enough to care.

That's the thing with sci-fi and action roles. You have to play the danger as real. If you don't, you end up with egg on your face. You have to commit. You can't think about how stupid it might look without the special effects.