Arielle Renwart steps in as Guiding Light's new Leah Bauer on May 18. The daughter of Springfield residents Rick and Mel Bauer comes home from boarding school looking a bit older. Leah was previously played by Marley Wright, the real-life child of Yvonna Kopacz (Mel).... Caitlin Van Zandt has been cast as Ashlee, a girl who helps Lizzie mess with Jonathan starting April 25.... Oh, and those new boys playing Blake's twins, Jason and Kevin Marler, are Mick Hazen and Eric Nelson. "They're beautiful kids," Liz Keifer (Blake) tells TVGuide.com. "I think the twins are supposed to be 12 or 13 now."