Master Roshi is the oldest member of the Z warriors that also is one
of the most experianced in Martial Arts.
He is a weird, down to Earth guy who will never underestamate his enemies.
He trained many of the
Z warriors. He also likes to watch the women's exersize show and read
the same type of magazines.
I don't know a lot of Roshi's family. I know he has great ancestors
but I'm not quite sure of their names.
Besides that the only family he has is the gang at Kame-house, The
place where he lives.
In the Dragonball he trains Goku, Krillin, Tien,
Yamcha, Choutzu and some others but mostly those.
Training is pretty much everything he does but in the past he wins
one of the Martial Arts Tournaments.