Cesar Millan is one of the most sought-after experts in the field of dog rehabilitation. His calm and assertive nature and natural ability to communicate with dogs has earned him the name “dog whisperer.” Since his show, The Dog Whisperer, first aired on National Geographic Channel in 1994, Millan has been rehabilitating dogs and training people to understand dog aggression and identify its causes, while implementing techniques to help the dogs live calm and submissive lives in harmony with its surroundings.