Will Chamberlain is an aspiring filmmaker from England. He is the writer, producer and star of the 2025 film, 'That Night Part III' which was directed and co-written with Ronan Bird. In the film, Will Chamberlain stars as the main antagonist; an undead slasher hellbent on revenge for his death. The character was featured prior, in Ronan Bird's backwoods slasher duology, 'That Night' and 'That Same Night' but was played by different actors. Despite only their recent collaboration, Ronan Bird is immensely grateful for Chamberlain's help as he is responsible for the financing of his latest film. Bird states in an interview, "I couldn't have done it without him, he's a genius with very deep pockets".