Renegade Knucks is an alternate-universe version of Knuckles the Echidna from Sonic Prime. He is a tough, rebellious, and street-smart fighter who serves as a variant ally and occasional adversary depending on the situation. In the series, he helps Sonic navigate the fractured Shatterverse while bringing a rougher, more independent attitude than the original Knuckles. His role highlights the different paths characters can take across the multiverse, while still keeping the core bravery and strength associated with Knuckles.