It was while he performed as Billy Breen at the New Pavilion Theatre Redcar (now the Regent Cinema) that he started using his familiar catchphrase "shut that door" when a side door had been left open causing a cold breeze to blow across the stage straight from the sea. During this period, Grayson was briefly managed by Eve Taylor, who renamed him 'Larry Grayson' and she is credited with being the source of the phrase, as several of her clients revealed that whenever she wanted to discuss money or personal issues with her clients, she would always tell them to "shut that door". Taylor struggled to find him the right opportunities and they parted, with Grayson becoming a client of Michael Grade.