Overview
"GS Wonderland" is about the 1960's Group Sounds bands - A Japanese pop movement inspired by the Beatles and other mid-1960's Brit Pop. Three young men set out to start their own band "The Diamonds" when they are signed to a recording contract during their very first rehearsal. Things turn for the unexpected when their agent brings Mick (Chiaki Kuriyama) into the group as their keyboardist.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 24 | 40 | |
 | 21 | 38 | |
 | 24 | 41 | |
 | 21 | 38 | |
 | 35 | 52 | |
 | 26 | 43 | |
 | 22 | 39 | |
 | 36 | 53 | |
 | 57 | February 21, 2018 (66) | |
 | 43 | 60 |