Mark Karan (born January 13, 1955) is an American guitarist and singer. He is best known for his long-term work with former members of the Grateful Dead, in RatDog (1998–2013), the Other Ones (1998–2000), Mickey Hart's band Planet Drum (1999), and Phil Lesh and Friends (2012). Karan has also played and toured with Terrapin Flyer, Delaney Bramlett, the Rembrandts, Sophie B. Hawkins, Dave Mason, and Paul Carrack. Karan leads the bands Jemimah Puddleduck and Mark Karan's Buds. In 2009 he released a solo album, Walk Through the Fire.