Spectrum The Hedgehog (スペクトラム・ザ・ヘッジホッグ Supekutoramu za hejjihoggu, born 29 April) is one of the main characters in the Rookie Chronicles. In an alternate universe, Spectrum was the Rookie, having saved the world from Eggman and Infinite alongside Sonic and the Resistance (during the events of Sonic Forces). Now, he travels around the world, and even the multiverse, looking for new adventures.