Question: What's New, Scooby-Doo?, is an American animated sitcom mystery comedy series produced by Warner Bros., and is the first television series in the franchise in  Grey DeLisle, portrayed the voices of who?
Sentence (from "What's New, Scooby-Doo?"): It is the first television series in the franchise in which Frank Welker, Grey DeLisle and Mindy Cohn respectively portrayed the voices of Scooby-Doo, Daphne and Velma; and the final one in which Casey Kasem portrayed Shaggy, having originally quit the role following a dispute regarding the portrayal of the character.
Relevant evidence: Yes