Kevin and Bean: How tough was the last day? And was the last scene we saw on the season finale between you and Scully, was that the last thing you shot?
DD: No. That wasn’t the last day. I think it was the second to last day. But that was basically the last day because on the real last day, all I was doing was running and jumping and I was action-Mulder. …So, it was my last acting day, and the last scene of that day was with Gillian.
Kevin and Bean: So, it’s tough like that.
DD: Was it tough? Yeah, it was very tough. Especially because it was the big mystery scene. We weren’t allowed to get [the script] until about two hours before it.
KROQ, Kevin & Bean, June 2001