Stephen Grant Serpell (born 9 February 1944) is a British drummer.

In 1983, during Sailor's quieter times, Serpell became a chemistry teacher, first at Altwood Church of England School and then at Waingels Copse Comprehensive School (now Waingels College), where he became head of the department.

While at Waingels College he taught Irwin Sparkes of The Hoosiers and, after hearing a demo from Sparkes and Alan Sharland, encouraged them to experience life a little more to help provide inspiration for their songs.

[1][2] Serpell enjoyed a revival of Sailor's success, which started in the early 1990s.

[3][4] Grant married Michelle Kingsland in 1966 and a year later they had their first child, Edmund Charles, followed two years later by their second child, Charlotte Anna.