Seems like a Gryffindor but is really a Slytherin: Gemini, Libra, Sagittarius

Seems like a Slytherin but is really a Gryffindor: Aries, Taurus

Seems like a Slytherin and IS a Slytherin: Scorpio, Leo, Cancer

Hufflepuff: Pisces, Aquarius

Ravenclaw: Virgo, Capricorn