Peter Robbins faces up to three three years in prison after pleading guilty to multiple crimes
Credit: John Gibbins/U-T San Diego/AP; AP

Oh, brother.

Peter Robbins, who was the voice of Charlie Brown in many of the early animated Peanuts specials, including A Charlie Brown Christmas, pleaded guilty Wednesday in San Diego to making criminal threats and stalking following incidents involving his ex-girlfriend and her doctor.

He faces up to three years in prison at his sentencing next month, according to California’s City News Service.

Robbins, 56, reportedly paid for breast-augmentation surgery for his then-girlfriend, Shawna Kern. But after their relationship ended following an alleged domestic-violence episode, he threatened Kern and the doctor in an attempt to get his money back, prosecutors said.

He was arrested in January and had originally pleaded not guilty.

Robbins was 9 years old when he became the voice of Charlie Brown. His other TV specials included A Boy Named Charlie Brown and It’s the Great Pumpkin, Charlie Brown.