Mark Clarke (born 25 July 1950 in Liverpool, England) is an English musician, bass player and singer, best known for his work with Colosseum and Mountain, as well as brief stints with Uriah Heep and Rainbow.

After some time Clarke was asked by Jon Hiseman to join Colosseum in the summer 1970 and he played in the band until the split late 1971, and again 21 years from the reunion in 1994 till the farewell in 2015.

In 2010 Clarke released his first solo album Moving to the Moon, which was co-produced by Ray DeTone, who also played all guitars on the record.

Hiseman died in June 2018 which initially appeared to be the end of JCM, however in early 2019 it was announced that band would continue with Ralph Salmins taking over drums.

[1] Colosseum Uriah Heep Tempest Natural Gas Ken Hensley Richard T. Bear Billy Squier Ian Hunter Michael Bolton The Monkees Mountain Torque Solo albums