Disney Channel has secured a star-studded cast of recurring and guest voice-over actors for its new animated series PHINEAS AND FERB, according to THE HOLLYWOOD REPORTER. Malcolm McDowell, Allison Janney, John O'Hurley, Jane Carr and Barry Bostwick will have recurring roles on the musical 2D series. Sandra Oh, Steve Zahn, Billy Ray Cyrus, J.K. Simmons, French Stewart, Vicki Lawrence, Tim Curry, Geraldo Rivera, Evander Holyfield and father-and-daughter Joel and Jennifer Grey are set to make guest appearances. The regular VO cast includes Ashley Tisdale, Caroline Rhea and Kelly Hu.

Created by Jeff "Swampy" Marsh, who also voices characters and exec produces with Dan Povenmire, the show follows brilliant Phineas Flynn and his inventive stepbrother Ferb Fletcher as they set out to make every day of summer vacation an adventure.

The sneak peek posted good numbers in August and will air again on Sept. 28. The series debut is set for January.