William Lau began his animation career on the groundbreaking CG animated television series Reboot! (1994) He is known for his directorial work on My Little Pony: Make Your Mark (2023), Barbie Princess and the Pauper (2004), HotWheels: Highway 35 (2003) Transformers: Beast Wars (1996) and The Last Kids on Earth (2019) which won an Daytime Emmy Award for Outstanding Special Class Animated Program.