Casting is underway for Liv's co-star in "Voltage" and some familiar faces show up for the auditions. Meanwhile, Karen arranges a "cleansing ceremony" for Maddie to help her let go of her feelings for Diggie.
- Dove Cameron as Liv and Maddie Rooney
- Tenzing Norgay Trainor as Parker Rooney
- Kali Rocha as Karen Rooney
- Benjamin King as Pete Rooney
- Emmy Buckner as Liv #2
- Shelby Wulfert as Maddie #2
- Jimmy Bellinger as Artie Smalls
- Jordan Fisher as Holden Dippledorf
- Chloe Wepper as Gemma
- Joey Bragg (Joey Rooney) did not appear in this episode. It was the first and only episode where Joey did not appear in.
- Maddie got rid of the things Diggie gave her.
- Josh was casted as Garrison, Tess' love interest.
- Holden still has feelings for Liv.
- This is the first appearance of Artie Smalls, Josh Willcox, and Holden Dippledorf in Season 3.
| To view the Co-Star-A-Rooney gallery, click here.