1970 : BLACK PIECES (ICA) – short plays
1972 : BAKERLOO LINE (Almost Free)
1973 : NICE (Almost Free)
1974 : PLAY MAS (Royal Court) – World Premiere
1975 : BLACK SLAVES – WHITE CHAINS. (Royal Court Lunchtime)
1976 : RUM ‘N COCA COLA (Royal Court), (Brooklyn Academy), BREAD (Young Vic)
1978 : ANOTHER TUESDAY (ICA), MORE MORE (ICA)
1979 : INDEPENDENCE (Foco Novo at the Bush Theatre), WELCOME HOME JACKO (Stratford East)
1980 : A DYING BUSINESS (Riverside), NICE (Arena Stage, Washington)
1981 : ONE RULE (Riverside), PLAY MAS (Goodman, Chicago), WELCOME HOME JACKO (New York) and MEETINGS (Phoenix, New York) – for which Michelle Shay won an Obie
1982 : MEETINGS (Hampstead Theatre) – Mustapha directed this production
1983 : WELCOME HOME JACKO (Riverside)
1984 : THE PLAYBOY OF THE WEST INDIES (Tricycle Theatre) – World Premiere
1988 : TRINIDAD SISTERS (Donmar Playhouse)
1994 : SMALL WORLD (Arena Stage, Washington, DC), THE PLAYBOY OF THE WEST INDIES (Tricycle Theatre)
1996 : SMALL WORLD (Southwark Playhouse)
2005: THE PLAYBOY OF THE WEST INDIES (Nottingham Playhouse)
2006: THREE SISTERS (Nottingham Playhouse)
2015 : PLAY MAS (Orange Tree Theatre)
2018 : THREE SISTERS AFTER CHEKOV (Naparima Bowl)
2022 : THE PLAYBOY OF THE WEST INDIES – THE MUSICAL (Birmingham Rep)
2023 : MEETINGS (Orange Tree Theatre)