Thrash is a Krimzon Boy who lives in Spargus City. He is tough and rough and bullies everybody, except for Terra, Jenna and Vivian.
He is voiced by Luke Hemsworth
Movies he appeares in
Sonic the Hedgehog and Jak 3
Sonic Storm Adventures of I, Frankenstein (cameo)
Sonic the Hedgehog and Jak 4: The Darkness Within