'Desperate Housewives': Julie Benz wants to dethrone Eva Longoria Parker (for charity)

abc-desperate-housewives-no-ordinary-family-eva-longoria-parker-julie-benz.jpg Eva Longoria Parker and "Desperate Housewives" guest star Julie Benz are going up against each other off-screen for a good cause. They're both participating in a scavenger hunt around Los Angeles in The Rally for Kids With Cancer.

Anyone who raises $25,000 can participate and each car gets a celebrity navigator. Longoria Parker serves as the event's honorary chairperson and she's the reigning champ in both the Miami and L.A. events. Benz is gunning for her cast mate's title, though.