The signs as Avatar the last Airbender Characters:

Aries: Jet

Taurus: Sokka

Gemini: Azula

Cancer: Katara

Leo: Ozai

Virgo: Toph

Libra: Iroh

Scorpio: Zuko

Sagittarius: Mai

Capricorn: Suki

Aquarius: Aang

Pisces: Ty Lee