EXCLUSIVE! At Home with Cesar MillanAs the sixth season of his hit show The Dog Whisperer begins, the famous pup trainer welcomes PEOPLE into his pack

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WE ARE FAMILY

Millan – pictured with wife Ilusion and sons Calvin, 10, and Andre, 15 – became an unlikely hero to his sons when he was spoofed on an episode of South Park. "I was so nervous," he says. "But then I laughed so hard!"