Stormare was born in Kumla, Sweden, and grew up in Arbrå. He changed his surname when he discovered that he shared it with a senior student at an acting academy. Like "storm" (a word which has the same meaning in Swedish and English), "stormare" is a Swedish word, meaning "stormer". Before settling on "Stormare", he briefly contemplated changing his name to "Retep Mrots", which is simply "Peter Storm" backwards.\n', '
Stormare began his career with the Royal Dramatic Theatre, to which he belonged for 11 years. In 1992, he took a leading position as associate artistic director at the Tokyo Globe Theatre, and made a name for himself through various Shakespeare performances, including Hamlet. Four years later, he moved to New York City and mainly took part in English-language productions there. He played Carl Hamilton, a fictional Swedish secret agent. He was discovered by international audiences for his critically acclaimed role as one of the kidnappers in Fargo (1996). He portrayed Dieter Stark in the 1997 film The Lost World: Jurassic Park and later played sleazy, unlicensed "eye-doctor" Solomon Eddie in Minority Report.\n', '
In 1998, he appeared in "The Frogger", a Seinfeld episode where he played a rogue electrician known as Slippery Pete. He portrayed Uli Kunkel in the 1998 film The Big Lebowski, as well as playing Lev Andropov, a Russian cosmonaut in the 1998 film Armageddon, where his unique performance cemented his status amongst top tier actors. In 1999, he appeared as a villainous producer and director of hardcore porn in the film 8mm. He also portrayed Gunny in the 2002 film Windtalkers and Alexei in the 2003 film Bad Boys II. In 2003, he played Ernst Röhm in Hitler: The Rise of Evil. In the 2005 film Constantine, he played Lucifer. He played the torturer Cavaldi in the 2005 film The Brothers Grimm. His first major character in television was on the Fox series Prison Break in 2005 for the first two seasons, where he played the inmate mob boss John Abruzzi. He was originally cast in Fido, but opted out of the film upon being cast in Prison Break.\n', '