CC-4224

CC-4224 or "Spike" was a clone captain who served under Jedi General Hanna Tano and Dread Cameron and the Grand Army of the Republic.

Early life
When on Kamino he showed a good skill with hunting knives and regular knives. Hence earning the name spike.

Final test
He had to take the final test on Kamino about 5 times because his clone units didn't not want to go out into the war.