James Van Der Beek isn't letting his ongoing cancer battle get him down - especially when it's time to take his kids trick-or-treating on Halloween. "Happy Halloween!!!!" James' wife, Kimberly Van Der Beek, wrote via Instagram early on Saturday, November 1, sharing photos of the family's costumes from the previous evening. James, 48, looked dapper as the titular Phantom of the Opera, completed with a tuxedo, white bowtie and a matching half-face mask. Kimberly, 43, for her part, dressed as a fox with a spiderweb painted on her neck.