My wife, Bojana, is a doctor; we both work intense hours and have months when we barely see each other. It isnt easy, but we realize nobody said it was supposed to be!

I ran the L.A. marathon and really loved the experience. Communal and wild and a gigantic challenge. Finishing that marathon means I can do more than I think. I think.

My big running discovery was around Stanley Park in Vancouver. Miss it. That's a six-mile loop. Now I smile when I get four miles done. Age is a beast.

I was in a karaoke video in 1991, for a song called 'Sukiyaki,' which is a very famous Japanese song, and I've actually heard from people that they've been in bars in Asia where they've seen me come up in the 'Sukiyaki' video that they play behind you. I'm in that. I'm in a karaoke video.

I started running around my 30th birthday. I wanted to lose weight; I didn't anticipate the serenity. Being in motion, suddenly my body was busy and so my head could work out some issues I had swept under a carpet of wine and cheese. Good therapy, that's a good run.

I am terrible at memorizing things. Hence, ad-libbing.

I think the thing that makes 'NCIS' so special is the team and the group. And there's our fearless leader, Mark Harmon. We all really enjoy working together, so it would be a shame if we weren't all there having fun together.