Youngest to oldest we have:

• Jak - 0 years
• JKK - 3 years
• Melody - 3 years
• Song - 3 years
• River - 3 years
• Trent - 4 years
• Iggy - 5 years
• Shakira - 7 years
• Danny - 20 years
• 7 - 21 years
• Zen - 23 years
• Coco - 23 years
• Lily - 23 years
• Tabitha - 23 years
• Indie - 25 years
• Ash - 25 years
• Jumin - 26 years
• Thog - 28 years
• Rachell - 37 years
• King - 40 years
• Cornet - 94 years
• Jehoiza - 6 centuries

Sliders are excluded from this list.