If there's one person Rudy can always count on, it's Penny. Maybe that's why she's the only real person he's ever taken into ChalkZone. Which is kinda funny, because Penny and Rudy are really sort of opposites. Penny's totally obsessed with science—numbers, formulas, accuracy and precision—while Rudy's a dreamer and an artist. But Penny helps Rudy solve problems, and Rudy takes Penny to new places, like, you know, behind the chalkboard where drawings come to life. Oh, did we mention Rudy has a little crush on her?