Moosa Mostafa was born on February 22, 2008 in Warwickshire in central England. He gained worldwide fame thanks to such Netflix projects as "The Last Bus on Earth" and "Wednesday." It is known that he attends Warwick School, and despite his rapidly developing acting career, education remains his main priority.

He made his film debut at the age of ten in the film "Christmas Rock!" (2018). This is the fourth and final Christmas-themed picture directed by Debbie Isitt. Part of the events unfolds at St. Bernadette's Primary School, and Moosa played one of the students. The lead roles in the comedy were played by Simon Lipkin, Celia Imrie, and Craig Revel Horwood.

In 2022, Mostafa got a role in the science fiction series "The Last Bus on Earth," released on the Netflix streaming service. It is the story of a group of schoolchildren who unite to fight an army of drones attacking humanity. Moosa appeared as Nasir Roman — a smart but socially awkward young man. With his performance, he attracted the attention of both critics and viewers.

In the same 2022, Mostafa got a role in another Netflix project — the series "Wednesday," which tells the story of the daughter of Gomez and Morticia Addams. The main heroine was played by Jenna Ortega, with Catherine Zeta-Jones, Luis Guzmán, Christina Ricci, and others in other roles. Moosa's character is Eugene, the head of the Nevermore Academy beekeeping club, who managed to become friends with Wednesday Addams. In the first season, they fought a monster that threatened the town of Jericho in Vermont.