Forty-year-old Andrew Gallo, of Copper Beech Lane in Bristol Twp., is facing a list of charges, including five counts of rape by causing impairment, six counts of possession with intent to deliver a controlled substance, four counts of strangulation, two counts of selling or furnishing liquor or malt or brewed beverage to minors, and one count of corruption of minors.
The victims range in age from 17 to 30 years old, the Bucks County District Attorney's office said.
Gallo was arrested on Wednesday morning and is being held on 10% of $5 million bail.
According to investigators, the victims in the case reported meeting Gallo on the website sugardaddymeet, going by the username DREWSTER420.
One victim also reported he used the name KAE, authorities said.
After meeting on the site, investigators say Gallo would arrange dates for them at his house and boasted about "the great drinks he would make for them."
Investigators say Gallo would then put drugs, including methamphetamine or Molly, into the victims' drinks without their knowledge.
The victims described feeling "strange" and having a "lack of control" during the ensuing sexual encounter, investigators say, being unable to stop Gallo.
The victims described rough treatment, investigators say, including Gallo putting his hands around the victims' throats to the point of passing out or almost passing out.
"The victims reported side effects from the drugs that included staying up for days, hallucinations, and psychosis," the office of D.A. Jennifer Schorn said in a news release.
Gallo's home was searched by authorities last month, during which police say they found a victim in his home, along with a bottle of alcohol that had been laced with methamphetamine.
Neighbors were stunned when they learned of his arrest.
"I'm kind of shocked about it because I didn't know he was like that. He seemed like a typical normal person," said Al Grates.
One neighbor says a few months ago he saw a young woman standing outside in the rain while barefoot. He now wonders if that was one of the victims.
"An Uber came and picked her up. She took off and that was the last I ever heard of her. But thinking in hindsight I feel really bad because apparently she might have needed help. And I just didn't realize," said Ken Hysore.
Authorities "strongly believe" there are more victims and are encouraging them to come forward.
If you have any information, you can contact Bristol Township Police Department Detective Emilyann Maialetti at 215-812-3024 or Bucks County Detectives at 215-348-6354. You can also contact Bucks County Detectives at bucksda.org, or the BucksCrimeTips submission email, buckscrimetips@buckscounty.org.