I think I was very lucky that I didn't get well-known until my early thirties. If it had happened when I was younger, you might have seen me falling out of nightclubs. I think I conducted myself as a much better human being because I was already married when all that came along (I got married five months after I got the role as Will).

There was not an episode [on Perception] that didn't deal with some form of mental illness, either my own, or I would be the first to notice if a defendant did a certain thing that perhaps he was suffering from this. And so we got to do some really outspoken stuff for what was otherwise a crime-solving show. And it was just a really good team.

I have a big, long episode [in Full Circle] with Calista [Flockhart], and then my character actually carries out through a lot of it because he was a cop investigating this crime. But it is almost hard to remember, even though it wasn't that long ago. We shot it so fast. We literally shot that whole episode in one day.

I was working with David Warner and John Rhys-Davies, who is from the Indiana Jones movies.He's a very strong, strong presence, and so I had to assert myself.

Mental illness is the last frontier. The gay thing is part of everyday life now on a show like 'Modern Family,' but mental illness is still full of stigma. Maybe it is time for that to change.

I think there's a certain objectivity that comes from being Canadian. You're partly British and partly American; you have a good bird's-eye view of both countries. So much of the comedy that comes out of Canada is impersonation - it's less 'look at me' than it is 'look at me playing other people.

As a television actor, there's a power you're given to use your image to do something valuable. As a parent, these messages are particularly important to me.