Mullally's journalism career began in India where, from 1937 to 1949, he was sub-editor on The Statesman of Calcutta, then editor of the Sunday Standard of Bombay. Back in London he worked as a sub-editor of The Financial News, as co-editor of the weekly Tribune, and finally as political editor and columnist of the Sunday Pictorial. From 1950 to 1955, he headed the public relations firm of Mullally & Warner, with clients ranging from Audrey Hepburn and Frank Sinatra to Douglas Fairbanks, Jr., Paul Getty, Frankie Laine, the Festival Ballet and Picture Post. Others included; Vera Lynn, Yvonne De Carlo, Guy Mitchell, Sonja Henie, Line Renaud, Johnnie Ray, Jo Stafford, Les Paul and Mary Ford, and the Oxford University Press and its counterpart, Cambridge University Press, as well as the Hulton Press.
Mullally's first novel was the 1958 world best-seller Danse Macabre. This was followed by eleven more titles. His semi-autobiographical novel Clancy was dramatised by BBC TV in five one-hour episodes in 1975 and 1977 under the title Looking for Clancy, starring Robert Powell and Keith Drinkel. Between books, Mullally compiled and wrote with the collaboration with the BBC an album, The Sounds of Time a dramatised history of Britain (1933–45) and the long running Penthouse magazine's strip cartoon "Oh Wicked Wanda!". In 1949 he abandoned a prospective candidature of the Labour Party for the parliamentary constituency of Finchley and Friern Barnet. Late in his life he contributed occasional freelance journalism.
Books by Frederic Mullally
Selected Bibliography
Dance Macabre (1958)
Man with Tin Trumpet (1961)
The Assassins (1964)
No Other Hunger (1966)
The Prizewinner (1967)
The Munich Involvement (1968)
Clancy (1971)
The Malta Conspiracy (1972)
Venus Afflicted (1973)
Hitler Has Won (1975)
The Deadly Payoff (1976)
The Daughters (1988)
Death Pays a Dividend (1944) with Fenner Brockway
Fascism Inside England (1946)
The Silver Salver (1981)
Primo:The Story of Man-Mountain Carnera (1991).
