"Brain-A-Rooney" is the eighth episode of Liv & Maddie.
Liv convinces Joey to let her join his Brain Olympics team, even though he doesn’t think she’s smart enough – and she’s set on proving him wrong.
- Dove Cameron as Liv and Maddie Rooney
- Joey Bragg as Joey Rooney
- Benjamin King as Pete Rooney
- Kali Rocha as Karen Rooney
- Tenzing Norgay Trainor as Parker Rooney
- This is the first time that a main character is absent.
- It is revealed that Liv portrayed Stephanie Einstein in Sing It Loud!.