Born in London, Robbins was a bank clerk who became an actor after appearing in amateur dramatic performances in Hitchin, Hertfordshire, where he and his family lived at the time. Robbins made his television debut as the cockney soldier in Roll-on Bloomin' Death. Primarily a comedy actor, he is best remembered for the role of Arthur Rudge, the persistently sarcastic husband of Olive (Anna Karen), in the popular sitcom On the Buses (1969–73). Robbins and Karen provided the secondary comic storyline to Reg Varney's comedy capers at the bus depot. Robbins also appeared in the series film spin-offs, On the Buses, Mutiny on the Buses, and Holiday on the Buses. His other comedy credits include non-recurring roles in Man About the House, Oh Brother!, The Good Life, One Foot in the Grave, The New Statesman, George and Mildred, Hi-de-Hi! and You Rang, M'Lord? He appeared as a rather humorously portrayed police sergeant in the TV adaptation of Brendon Chase.
As well as these comic roles, he assumed various straight roles in some of the major British television shows of the 1960s and 1970s: including Minder, The Sweeney, Z-Cars, Return of the Saint, Murder Most English, The Avengers, Dixon of Dock Green, The Bill and the 1982 Doctor Who story The Visitation.
Robbins's film credits included The Whisperers, Up The Junction, The Looking Glass War, Zeppelin and Blake Edwards' films The Pink Panther Strikes Again and Victor/Victoria'. He also had an extensive career as a radio actor, including a role in the soap opera Waggoner's Walk and the satirical 1970s show Life is What Yer Make It.
Robbins was an indefatigable worker for charity. He was active in the Grand Order of Water Rats (being elected 'Rat of the Year' in 1978) and the Catholic Stage Guild, and received a Papal Award for his services in 1987. In one of his last television appearances, in A Little Bit of Heaven Robbins recalled his childhood visits to Norfolk and spoke of his faith and love of the Shrine of Our Lady at Walsingham. Michael Robbins had a brother Jack who was a head teacher at Saint Gregory's Catholic middle school in Bedford in the 1970s and early 1980s. Michael made some guest appearances at this school throughout the years and sometimes entertained the pupils with various sketches with his brother Jack Robbins
In the mid-1970s he also directed a film: How Are You?
1992
as Thias Bede
1990
as Twelvetrees Senior
1990
1988
as The Fat Man
1987
as Mad Eddie
1985
as Bill
1985
as Simmons
1984
as Sgt. Major Throttle
1984
1984
as Mr. Pringle
1982
as Nym
1982
as Manager of Victoria's Hotel
1982
as Bert
1982
as Richard Mace
1982
as Marley
1982
as Sergeant Bunting
1981
as Henderson
1981
1980
as Det. Sgt. Praed
1979
as McQueen
1979
as Police Seargent
1979
1979
as Beeky
1979
1978
1978
as Beeky
1978
1977
as Pumphrey
1976
as Jarvis
1976
1975
1975
as Mr. Bulstrode
1975
as Kevin Lee
1974
as Doorman
1974
1973
as Bert
1973
1973
as Car Driver
1973
as Arthur Rudge
1972
as 2nd Funeral Director
1972
as Arthur his brother in law
1971
as Eddie
1971
as Arthur Rudge - Stan's Brother-in-Law
1971
as Barzun
1971
as Cockney Sergeant
1970
as Taxi Driver
1970
as Sergeant Billings
1970
as Truck Driver
1969
as Garage Attendant
1969
as Burton
1969
as Gerry Baxter
1969
1969
1969
as Fred
1968
as TV Repairman
1968
as Jack
1968
as Figgins
1967
as Mr Noonan
1967
1967
1966
1966
1965
as Sergeant Harris
1965
as C.P.O. Bradshaw
1965
as Smith
1964
as George (organiser)
1964
1964
as Gaspard Caderousse
1964
as Sergeant Strickland
1964
1964
1964
as Bargee
1963
as Richard Mace
1963
as Percy
1962
as Orford
1962
as Harry
1962
as Smith
1962
as Georgie
1962
as Humphrey Place
1962
1962
as Harris
1961
as Second Labourer
1961
as Henry Farrow
1961
as Cavell
1959