
Brian Grellis was born Brian McGrellis in Liverpool on the 12th of July 1937 and was billed as McGrellis in his first TV acting role as a delivery boy in the 'Edgar Wallace Mysteries' (1963). A familiar face in supporting roles and guest spots in many stalwart TV series, Grellis' film credits included Only When I Larf (1968), Submarine X-1 (1968), Mosquito Squadron (1968), Battle of Britain (1969), On Her Majesty's Secret Service (1969), Trog (1970), Fear in the Night (1972), The Offence (1973), and Bite the Bullet (1975). Grellis retired from acting in the late 1980s due to bad arthritis.

The Manipulators
1972 · as Marty Smith

Battle of Britain
1969 · as RAF Cpl. Ernie (uncredited)

Threads
1985 · as Accommodation Officer

The Offence
1973 · as Policeman

Fear in the Night
1972 · as 2nd Policeman

Only When I Larf
1968 · as Spider

Submarine X-1
1968 · as CPO Barquist X 3

Doctor Who: Snakedance
1983 · as Megaphone Man

The Love-Girl and the Innocent
1973 · as Machineshop Foreman

Something in the Cellar
1969 · as Sergeant

Doctor Who: Revenge of the Cybermen
1975 · as Seprah

The Double
1963 · as Delivery Boy

Doctor Who: The Invisible Enemy
1977 · as Safran