Earliest Birthdates of Dragonball Z Fighters and Supporters
Not counting villains. Only Z fighters and supporters.Source: http://dragonball.wikia.com/wiki/List_of_character_birth_dates_and_ages, Created on 1/1/2015
The Top Ten
1 Roughly 75 million before age - Old Kai
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2 Roughly 5 million before age - Supreme Kai
3 237 before age - Turtle
4 Roughly 50 before age - Korin
5 Age 242 - Nameless Namekian
6 Age 430 - Master Roshi
7 Age 461 - Kami
8 Age 461 - King Piccolo
9 Age 658 - Grandpa Gohan
10 Age 732 - Vegeta