Commander Cody, a.k.a. Dolly, was a clone trooper afflicted with a bizarre form of hirsutism. Basically, when Kenobi came to Kamino sniffing around looking for clones, the Kaminoans assumed he was Sidney's agent. Eager to meet their deadline for a superclone-prototype, they created Dolly out of as much of Jango Fett's Mandalorian DNA they had available and filled in the unsequenced bits with Sheep's DNA(2224 genes in total had to be filled in, which was incidentally Dolly's serial number). Although this did not affect his performance as a clone, and he looked normal when shaven, his entire body sprouted wool and he had a tendency to bleat, as well as sing off tune in the bath.