Grey DeLisle Daphne Blake (voice) Mikey Kelley Bill McLemore (voice) B.J. Ward Velma Dinkley (voice) Tom Kane Professor Robert Kaufman (voice) Bob Bergen Eric Staufer (voice) Scott Innes Scooby-Doo / Shaggy Rogers (voice) Joe Alaskey Officer Wembley (voice) Gary Anthony Sturgis Phantom Virus (voice) Frank Welker Fred Jones (voice)