Jeffrey Steven Pilson (born January 19, 1959) is an American musician best known for being the bass player in Dokken and currently classic rock band Foreigner. He has also had an extended stint with Dio in the 1990s. He is a multi-instrumentalist who plays guitar, cello, keyboards, piano and mellotron. Pilson played fictional heavy metal bassist Jörgen in the 2001 film Rock Star, and voiced Johnny Cage in the 2011 video game Mortal Kombat.