Hollywood actor Ashton Kutcher’s twin brother Michael Kutcher has opened up about his feelings towards the “The ’70s Show” star for revealing his cerebral palsy diagnosis to the world during an interview in 2003.

“I was very angry. Very angry. I remember speaking to him about it,” Michael Kutcher told “Today” in an interview published Thursday. “I didn’t want to be the face of CP. I never talked about it.”

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According to the Centers for Disease Control and Prevention, cerebral palsy is a group of disorders that affect a person’s ability to move and maintain balance and posture. Michael, who was diagnosed at 3 years old, says he attempted to hide it for most of his life.

However, Michael further said that he no longer is upset with his brother and was rather thankful for that interview 18 years ago.

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“Chris (Ashton Kutcher’s real name) did me the biggest favour he’s ever done because he allowed me to be myself,” Michael Kutcher said.

Michael narrated how a 5-year-old’s mother reached out to him Kutcher asking if he’d be willing to speak about his experience with the disorder at a gala, as her daughter Bella was also experiencing the disorder. Although he wasn’t ready to share his story, he met up with the woman for coffee.

“I realized I needed to let go of the shame I felt and be a champion for people like Bella,” Michael Kutcher said. “I was finally ready to tell my story and I knew because of my twin, I’d have a big reach.”

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Meanwhile, he also talked about how Ashton used to defend him against bullies after he was “called every name in the book on the playground.”

“My brother picked a fight with them. He stood up for me. He wanted them to treat me with respect,” Michael Kutcher said. “And that meant a lot.”