gohan: one of the main charachters in dbz/gt he is gokus son and deafets cell, and bojack

 

goku: the main charachter of db/z/gt.

 

goku jr.: not very important in any shows but for some reason they made him a movie he is from 100 years from the end of gt

 

gozua: the swordsman of the henchmen of bojack,he is defetead by trunks

 

goten: second son of goku, he was able to become a super sayian when he was 6, but in gt he stops fighting and focuses on girls

 

gotenks: the fusion of goten and trunks, gotenks is the second one to become a ssj3

 

gozu: blue demon of hell

 

grandpa gohan: the "grandpa" of goku gohan was named after him

 

great saiyman: the defender of satan city, his true identity is gohan

 

great saiyaman 2: makes only one appereance, she is videl