Gohan- 4 when he was first introduced (not 5 and a half like what the American dubbed version of Dragon ball Z said).
-He trained under Piccolo for one year, then went to Planet Namek for another year.
-At Future Trunks arrived, Gohan was 7.
-Cell Series, trained for three years in preparation of the androids. At 10, he trained for another year in the Room of Spirit and Time in the Sky Palace.
-At 11, Gohan killed Cell.
-At 16, Gohan entered Orange Star High School.
Goten- 1 year younger than Trunks.
Grandpa Gohan- 79 years old when he found Kakkarot in the forest.
Kakkarot- told that he was 14 years old when he met Bulma. In the first Tournament, he confessed that he was really 12 years old.
-He didn't know how to count before.
Kami- over 900 years old when he fused with Piccolo.
Krillin- is 1 year older than Kakkarot.
Master Roshi- began to go perverted at 123 years old.
-was 307 years old when Kakkarot was born.
Pan- was 5 years old when Dragon ball Z ended.
- Dragon ball GT, she was 14.
Yamaha and Tenshin-Han- are 4 years older than Kakkarot.
