Alleged abuse in the home

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Growing up as the youngest of four kids, McCormick suffered from anxiety due to her tumultuous family life. In a piece written for Newsweek, the child star had this to say about her childhood: “In the early ’70s, my older brother was battling a heroin addiction and my father was having an affair, both of which devastated my family.”

However, her father’s philandering ways weren’t the only issues in the McCormick household. According to the actress’ memoir, Here’s the Story: Surviving Marcia Brady And Finding My True Voice (via CBS News), her father had also been abusive.

Her real life — with all of the abuse, drug use, and dysfunction — was obviously in direct contrast from her TV life, and that caused McCormick to feel like she was hiding a deep dark secret. “As a teenager, I had no idea that few people are everything they present to the outside world,” she wrote. “Yet there I was, hiding the reality of my life behind the unreal perfection of Marcia Brady … No one suspected the fear that gnawed at me even as I lent my voice to the chorus of Bradys singing, ‘It’s a Sunshine Day.”‘