Late last year it was revealed that Corey Feldman would be voicing a character in the second season of Nickelodeon's TMNT cartoon. Initially, speculation was that Feldman might be voicing Casey Jones, but it was recently announced that Josh Peck would be playing that role.
The current issue of TV Guide has a small blurb (above) that announces Feldman to be playing Slash, the mutated form of Raphael's pet turtle, Spike. According to the article, Slash will be featured in at least two episodes next season.