High Caste was a Thoroughbred racehorse and stallion that was bred in New Zealand and was considered the best two-year-old in New Zealand after winning three of his four race starts. He was a good racehorse under handicap and weight for age conditions and combined this with wins in good races from 5 furlongs (1,000 metres) to 1 3⁄4 miles (2,800 m), carrying up to 10 stone 6 pounds (66 kilograms).