Castello
- Owner: Roger and Jennifer Smith
- Breed: Holsteiner
- Color: Bay
- Rider: Liza Boyd
- Sex: Gelding
- Year foaled: 1997
- Favorite Treats: Peppermints and NickerDoodles
- Favorite Jump: Big natural oxers
- Personality: Casey is a character; he is always very chipper and happy and always has a little gleam in his eye. When he walks in the ring, he is all business and wants to win
- Barn Name: Casey
- Career Highlights: Winner of the 2005 Challenge of Champions at Blowing Rock Charity; winner of the 2008 Aiken Spring and Atlanta Summer Classic Derbies; fourth in the 2009 Winter Equestrian Festival Derby; winner of the 2009 Aiken Spring and Blowing Rock Derbies; fifth in the 2009 Derby Finals and second in overall standings in the 2009 series; second in the 2010 Atlanta Spring Challenge and the Atlanta Summer Classic Derbies; eighth in the 2010 Devon Derby
- 2009/2010 Derby Money Won: $5,950
