Born in Louisiana, Haynes relocated to Europe in the late 1950s, settling for a time in Edinburgh where he helped transform the underground arts scene.
Along with local arts icon Richard Demarco, Haynes founded the Traverse Theatre, with the venue serving as a launchpad for a whole host of future famous names in British theatre and film.
In 1969, Haynes moved to Paris where he became well-known for his open house dinner parties and further established himself as a leading figure of the counterculture.
Maintaining links with Scotland and Edinburgh throughout his life, Haynes was awarded an honorary doctorate from Edinburgh Napier University in 2018.
In 1969, Haynes moved to Paris where he became well-known for his open house dinner parties and further established himself as a leading figure of the counterculture.