Miles "Tails" Prower is perhaps Sonic's most loyal and well-known friend. Ever since his first appearance in 1992, Tails has been a reliable sidekick, and quickly established his place in the franchise. He's been appearing at Sonic's side in almost every game and spin-off for over thirty years, and his unwavering commitment to the cause has made him well-loved by Sonic fans. Tails has been so popular that he's even starred in his spin-off titles, something very few Sonic characters achieve.