CT-7719, nicknamed "Banks," was a clone trooper sergeant in the Grand Army of the Republic. When the Clone Wars broke out in 22 BBY, he joined millions of other clones in fighting for the Galactic Republic against the Confederacy of Independent Systems. His nickname was derived his unique skill of being able to see mathematical angles better than other clones, which resulted in an ability to "bank" blaster bolts off a surface and into his target.