Jamie Lynn Marie Spears joined the cast in season 8, she would eventually leave to star in the series Zoey 101. She later returns with the cast of Zoey 101 in episode 1129.
She is the younger sister of singer Britney Spears.
- Kristen - Bridgett's Slumber Party
- Zoe - The Unreal World
- Carlee - Trashin' Fashion
- Betty Jo Roughneck - The Roughnecks/American Idiot
- Thelma Stump - Thelma Stump: Oldest Bodyguard in the Business
- Girl Scout - Tilt-a-Hurl
- Jamie Lynn was the youngest cast member of "All That" until Christina Kirkman came along.
- After leaving "All That" to star on "Zoey 101" Jamie Lynn Spears was replaced by R U All That? runner up Ryan Coleman.
- As a child Jamie Lynn Spears was involved with gymnastics, basketball, and cheerleading.
- After "Zoey 101" ended Jamie Lynn Spears got pregnant and moved back to Kentwood.
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