In the Sonic franchise, who is Sonic’s fox-like companion with two tails?

Tails

In "Big Hero 6", what's Hiro's brother's name? Who directed the film adaptation of "Life of Pi"? Which sandbox space exploration game, initially released in 2016 by Hello Games, experienced a significant turnaround after release? What city hosted the first Super Bowl? Who was the first NFL team to lose four consecutive Super Bowls?