Born 1926, Keith Marsh was an English actor, perhaps best known for his role as Jacko in 70s British sitcom Love Thy Neighbour.
Love Thy Neighbour
Jacko
The Gaffer
Henry
George And The Dragon
Scrooge
Well Wisher (as Keith March)
Quatermass and the Pit
Johnson
The Family Way
Fish and Chip Van Proprietor (uncredited)
Othello
Daleks' Invasion Earth: 2150 A.D.
Conway