Friends
There's not a lot of information...just some main information
Kuririn
he is little monk who trained with Goku under Master
Roshi. He is the strongest of the earth's fighters. In the Garlic Jr. saga he
goes out with Marron but later thinks she is to good for him. Later on, he grows
hair and marries 18 and have a daughter named Marron. How did that happen? Well,
in one of the episodes (forgot which one) when Goku came back, and says "What?!?
Android 18 is here!!!" and Kuririn says"Well, 18 and I are married and we have a
child" Goku's face is shocked and asks "How can that be?" So Kuririn explains
that 18 was originality human and Dr. Gero just did something to here.
18
Not much, but she is a android, sister of Android 17.
Creator? Dr. Gero...later was killed by Android 17. She is the mother of Marron.
Marron
Marron, daughter of Kuririn and Android 18.
Piccolo
Our green Namek!! He is the first to train Gohan. He
teaches him independence and more. Gohan befriends with Piccolo. Gohan is
Piccolo's first real friend. ^^
Tenshinhan
He is the strongest human. He also has a third eye. Chouzu, is his friend and student.
Yamcha
He is a bandit. He use to date Bulma during the DB
series. Yamcha is a human of the Z-fighters. He trains under King Kai along with
Tien, Chouzu, and Piccolo during the Vegeta Saga.
Vegeta
Vegeta, the prince of all Saiyans, the father of
Trunks and Bra and the husband of Bulma. He always want to fight Goku to prove that he
is the most strongest Saiyan.
Bulma
Bulma, the wife of Vegeta and the mother of Trunks and
Bra. She works at Capsule Corporation and is a computer genius like me =P
Trunks (all)
Trunks, the son of Vegeta and Bulma, older brother of
Bra. The purple-haired guy...who everyone luvs...(i think) anyways...on to the
info of all Trunks:
Chibi Trunks
: The boy who causes mischief. He won the
tournament of the little boys.
Teenage Trunks
: In the future, Trunks trains with
Gohan as he is the last one to fight the Androids. He goes Super Saiyan with his
anger when Gohan is dead.
Trunks
: The normal Trunks ^^ (I don't know) He travels
back in time and he helps the Z fighters defeat Cell...though he died...but was
revived by the Dragonballs
Mirai Trunks
: The future Trunks, the one with the long
hair and blue vest...etc. Anyway he's my favorite!!! ^^ He looks cute!!
GT Trunks
: Trunks in Dragonball GT (Grand Tour) He
works at Capsule Corps. though through some of the episode (Jap. verison) Trunks
would escape his job, through the window until one day Vegeta caught him. hee
hee. He seems "nerdy" in GT, but oh well. ^^
Bra
She is the daughter of Vegeta and Bulma and the
younger sister of Trunks. She is the Saiyan Princess. ^^ I wonder how that
feels? Anyway she isn't shown a lot in the series. Well...not that much
information of her..
Credits: Images above from Capsule Corporation
he is little monk who trained with Goku under Master
Roshi. He is the strongest of the earth's fighters. In the Garlic Jr. saga he
goes out with Marron but later thinks she is to good for him. Later on, he grows
hair and marries 18 and have a daughter named Marron. How did that happen? Well,
in one of the episodes (forgot which one) when Goku came back, and says "What?!?
Android 18 is here!!!" and Kuririn says"Well, 18 and I are married and we have a
child" Goku's face is shocked and asks "How can that be?" So Kuririn explains
that 18 was originality human and Dr. Gero just did something to here. 
Not much, but she is a android, sister of Android 17.
Creator? Dr. Gero...later was killed by Android 17. She is the mother of Marron.
Marron, daughter of Kuririn and Android 18.
Our green Namek!! He is the first to train Gohan. He
teaches him independence and more. Gohan befriends with Piccolo. Gohan is
Piccolo's first real friend. ^^
He is the strongest human. He also has a third eye. Chouzu, is his friend and student.
He is a bandit. He use to date Bulma during the DB
series. Yamcha is a human of the Z-fighters. He trains under King Kai along with
Tien, Chouzu, and Piccolo during the Vegeta Saga. 
Vegeta, the prince of all Saiyans, the father of
Trunks and Bra and the husband of Bulma. He always want to fight Goku to prove that he
is the most strongest Saiyan.
Bulma, the wife of Vegeta and the mother of Trunks and
Bra. She works at Capsule Corporation and is a computer genius like me =P
Trunks, the son of Vegeta and Bulma, older brother of
Bra. The purple-haired guy...who everyone luvs...(i think) anyways...on to the
info of all Trunks:
She is the daughter of Vegeta and Bulma and the
younger sister of Trunks. She is the Saiyan Princess. ^^ I wonder how that
feels? Anyway she isn't shown a lot in the series. Well...not that much
information of her..