Gyro is a young man from Naples. Gyro has a altruistic side. His very close friend is the paraplegic Johnny Joestar to whom he taught the Spin technique and helped get the Holy Corpse Parts. He is a royal executioner with doctor training. He uses 「Steel Balls」 while using 「Spin」 in combat or to manipulate or relax the body before executions. His stand is 「BALLBREAKER」. He usually doent allow women on his saddle because he believes in a superstition. unknown if gay or straight. Very clever.

Gyro Zeppeli, 24 years old

TATA is the leader of BT21 and is a crown prince on Planet BT. Possessor of supernatural powers and a elastic body that stretches to great lengths. Their friends are Chimmy, Cooky, RJ, Koya, Shooky and Mang. TATA is an alien that has heart-shaped head with yellow lips, and a blue body with yellow polka-dots. TATA is a shapeshifter meaning they can turn into anything. They are cute and funny. any pronouns. TATA crash landed onto Earth. 