- "Oz is down."
"So is Ringo."
- ―Two clone troopers, upon checking Ringo and Oz after the explosion.
Oz was one of several million clones of the bounty hunter Jango Fett. He was born and trained in the art of combat on the planet Kamino to serve the Grand Republic Clone Army.  During the Clone Wars, Oz was placed into the 501st Legion. About two years into the Clone Wars conflict, The 501st was transported to the Separatist controlled planet of Umbara. The Republic was preparing to recapture the world; in turn setting off the Battle of Umbara. He, along with many other troopers descended through the planet's dark atmosphere aboard Low Altitude Assault Transport/infantry gunships. The fighting was intense but the 501st eventually won the first day—but not without casualties. Sometime later, Oz, together with his brother Ringo, stepped on a mine. They were both killed in the immediate explosion. After the fighting died down two other troopers confirmed their deaths.