In 1949 he had his first play, Max, produced at the Malvern Festival, where he was acting in three plays by Shaw.
Ernest Thesiger, who again played 'Mr Rowley', revived the play at the Malvern Festival on 11 August 1949.
Three Divertissements, Howell's last known orchestral work, did not receive its premiere until the 1950 Malvern Festival.
He also performed at the 1934 Malvern Festival and in Glasgow and London's West End.
The Millionairess opened at the Malvern Festival with Sybil Thorndike as Epifania.
The company's founders, Waldo and Muriel Lanchester, performed regularly in the Malvern Festival.
The Autumn in Malvern Festival is an annual event featuring performances of artists of music, poetry, writers and film makers held during October every year.
However, this event never took place, and the actual premiere was given at the Malvern Festival in 1992, by the same performers.
The Birmingham Repertory Theatre staged the play at the Malvern Festival in 1935.
After being rejected by two London producers, it premiered at the Malvern Festival of 1930, produced by Sir Barry Jackson.