VH1 has revealed the identities of the nine celebrities who will attempt sobriety in Celebrity Rehab with Dr. Drew's third season, which is currently slated to premiere in early 2010.

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Celebrity Rehab with Dr. Drew's third-season cast consists of former One Day at a Time star Mackenzie Phillips; former "Hollywood Madam" Heidi Fleiss; actor Tom Sizemore; former NBA star Dennis Rodman; country singer Mindy McCready; former America's Next Top Model fifth-season contestant Lisa D'Amato; ex-Alice in Chains bassist Mike Starr; former The Real World Hollywood cast member Joey Kovar; and former Playboy Playmate Kari Ann Peniche.

In addition to D'Amato and Kovar, several other third-season participants have previous connections to the reality realm.

Fleiss is the sister of The Bachelor creator Mike Fleiss; Sizemore starred in the 2007 VH1 reality series Shooting Sizemore; and Rodman won ABC's Celebrity Mole: Yucatan in 2004 and CMT's Hulk Hogan Celebrity Championship Wrestling last year, while also competing on the second season of NBC's Celebrity Apprentice earlier this year.

Celebrity Rehab with Dr. Drew's third season will follow a similar format to its first two installments, as the aforementioned celebrities volunteer to be treated by David Drew "Dr. Drew" Pinsky and his staff -- undergoing a 21-day detoxification and treatment at The Pasadena Recovery Center.

In addition, drug addiction counselor Bob Forrest and resident technician Shelly Sprague will both reprise their roles for the show's third season.

VH1 renewed Celebrity Rehab with Dr. Drew for a third season in April, and it will consist of eight hour-long episodes.
About The Author: Christopher Rocchio
Christopher Rocchio is an entertainment reporter for Reality TV World and has covered the reality TV genre for several years.