Sonic Adventure 2 Knuckles the Echidna 1 game Knuckles the Echidna is a character from Sonic Adventure 2. Verified 22 Aug 2026 Appearances Games featuring Knuckles the Echidna 79 Sonic Adventure 2 19 June 2001 Other characters in Sonic Adventure 2 Full cast Dr. Eggman President Rouge the Bat Chao Gerald Robotnik Amy Rose Maria Robotnik Sonic the Hedgehog Miles "Tails" Prower Shadow the Hedgehog GUN Solider Space Colony ARK computer
