Peter is multilingual. He speaks 4 different languages: English, Spanish, French and German.
He married Mariska Hargitay on August 28, 2004 in Santa Barbara, California. They met on the set of Law & Order SVU and their first date was when Peter took Mariska to church. He and Mariska had their first child, a boy, on June 28th, 2006. They named him August Miklos Fredrich Hermann. The two middle names are Mariska's father's name and Peter's grandfather's name.