The unnamed daredevil is a character in Adventures of Sonic the Hedgehog. He is dressed like a 1940's aviator and has an upper-class English accent.
After Tails gained super speed from the Speedemint Gum, he went looking for people to save so that he could be like Sonic. He noticed the daredevil jumping out of a plane and thought that the daredevil needed saving. Even though the daredevil told him to go away, Tails caught him anyway, at which point the daredevil said that he was competing in the parachute freefall event of the Mobius International Daredevil Competition, and that Tails had made him lose.
On the ground, the people booed Tails, who ran away. Sonic arrived a moment later, looking for Tails, and the daredevil said that Tails had ruined their whole competition. When the daredevil angrily demanded to know if Sonic was Tails' friend, Sonic said that he had never heard of him and ran off.