Kankurou

Name: Kankurou
Age: 15
Birthday: 15 May
Zodiac: Taurus
Rank: Jounin
From: Sand
Teacher: Baki
Teammates: Gaara, Temari
Family: Kazekage (Father), Temari and Gaara (younger siblings)
Weapon: Those weird puppets
Hobbies: Face painting.

Background: Son of former Kazekage and brother of current kazekage.

The Deal with him: Kankurou is probably best known for walking around in his pajamas and carrying heavy looking puppets on his back. Kankurou uses branded puppet weapons created by Sasori of the Red Sand, former Sand nin and current Akatsuki member.

Though a formidable ninja in his own right, Kankurou's career is shadowed by his baby brother Gaara's achievements. When they were little genins, all everyone talked about was how scary Gaara was. Gaara's insane abilities as the Shukaku's carrier also made him the the leader of the team. When Gaara became Kazekage, all everyone gushed about was how much they love him, once again side-lining Kankurou until he got his ass kicked by Sasori of the Desert.

Kankurou's avid hobby with experimental face painting of various symbols and shapes is also really useful in distinguishing his age and timeline of events during the flashbacks in the anime.

Temari

Name: Temari
Age: 15
Birthday: 23 August
Zodiac: Leo
Rank: Genin
From: Sand
Teacher: Baki
Teammates: Gaara, Kankurou
Family: Kazekage (Father), Gaara and Kankurou (younger and elder brother)
Weapon: That big fan

Background: Genin of Sand sent to take part in the Chuunin exams in the Leaf.

The Deal with her: Probably the toughest Genin to take part in the Chuunin exams with Naruto and gang, Temari is the daughter of the Kage of the Sand and sister of Gaara. In the guise of taking the exams, she and her teammates/siblings were actually sent on an A-rank mission. Her main function to assist in the Sand's invasion of the Leaf and keep a watch over Gaara. Her weapon is that big fan she carries with her and her main jutsu is the Whirlwind technique, which, at a wave of the fan from her, blows up a windstorm embedded with chakra to sting her opponents.

After the invasion fo the Leaf by the Sand and Sound failed, she escaped back to the Sand with her siblings. She returned as an ally of Konoha wearing a funky new purple costume and an even shorter miniskirt during the Sasuke chase and helped Shikamaru fight the sound nin.

Gaara

Name: Gaara of the Desert
Age: 13
Birthday: 19 January
Zodiac: Capricorn
Rank: Genin
From: Sand
Teacher: Baki
Teammates: Temari and Kankurou
Family: Kazekage (Father), Temari and Kankurou (elder sister and brother)
Most Used Technique: Desert Funeral

Background: When Gaara was born, he took the life of his mother as a sacrifice. Gaara was an experiment attempt by the hidden village of Sand to 'build' stronger ninjas.

The Deal with him: Before the Chuunin exams, Gaara has never been hurt as the sand always protected him. He has never slept in years either as the Sand demon would take over his body and eat away part of his mind everytime he lose consciousness. Thus, Gaara has become quite mentally unstable. He has never felt love as his villagers feared and loathed him. His father, the Kazakage, sent ninjas to assasinate him since he was 6 years old as his powers was getting out of hand. The 1st of the assasins was Gaara's uncle whom he thought was the only person who loved him.

Ever since the incident, Gaara 'tattooed' the kanji 'love' on his forehead and swore to love only himself and sought to feel his existence by killing others. He was sent along with Temari and Kankurou on an A-rank mission. Seemingly to take part in the Chuunin exams in Konoha, Gaara transforming into the Shukaku was actually the Sand's trump card in their plan with the Sound to destroy Konoha. However, he was defeated by Naruto and escaped back to the Sand with Temari and Kankurou.