Rex Features
The second episode of the upcoming debut season will feature Cole as David's ex-girlfriend, while the following week will reportedly see Manning play a singer whose music video is being produced by Jonah.
The show's regular cast includes Ashlee Simpson-Wentz, Katie Cassidy, Michael Rady, Jessica Lucas and Stephanie Jacobson.
The series is due to premiere on Tuesday, September 8 after a lead-in from sophomore drama 90210.
