He's pitted his sons against each other, blackmailed his ex and shot his own brother. But tonight, Dan Scott pays for it all in the fourth season finale of the CW's One Tree Hill (airing tonight at 9 pm/ET). Here, Paul Johansson talks about the justice awaiting his small-town J.R. Ewing and the jump in time that will make all the characters four years older when they return at mid-season next year.

TV Guide: If Dan's getting his due, does that mean poor Karen's finally going to find out she's fallen for her lover's killer? Paul Johansson: I don't know if I'm allowed to say, but it's really horrifying to see what she goes through.... The ramifications reach all over. Nathan's basketball scholarship, Lucas' heart condition... we've set up a lot.

TV Guide: Will this jump in time spare you time in an orange jumpsuit?Johansson: [Laughs] It could bring new life to the show. It's a different story now, and I think there are going to be some shake-ups. Some stories have to be put to bed because they're done, and some new ones have to come. To do that, you have to clear the way a little bit.

TV Guide: So some people might not come back? Johansson: I think that's true, yeah.

TV Guide: Once all of the high schoolers are legal, Dan could really get into trouble. Johansson: The girls on our show are so beautiful and so much fun to work with that I think a coupling with any of them — and maybe even a couple of the guys — would be really fun. [Laughs]

TV Guide: Being bad always is! Johansson: I go through airports and 13-year-old girls will move their seats to get away from me. I'm "the mean dad." But moms are a whole other story! They like the bad boy. I get eyes from women pushing quadruplets and think, "This is weird." [Laughs]

Before the kiddies get too old, let our new Online Video Guide help you revisit some of One Tree Hill's best moments.