Donald Harrison wears many hats on David Simon's new HBO series Treme. Harrison was contacted early on before production began and asked to be a consultant. He helped in developing characters based on his life in modern jazz music and New Orleans culture. The show developed 2 characters based on Harrison being a jazz musician with a father that is a Big Chief in the culture of New Orleans. The father, Altert Lambreaux is played by Clark Peters. The son, Delmond Lambreaux is played by Rob Brown. Harrison gets to interact with both characters in episodes 1, 6, and 10. His interaction takes place as a musician playing his own compositions, as an actor delivering lines in scenes with them, or as a Big Chief leading his Congo Nation Mardi Gras Indian group. Check Harrison out on HBO and make sure you tell HBO you like Harrison on their website.