When Mark Hall, who has died of cancer aged 75, teamed up in a new company with Brian Cosgrove, a fellow graphic designer from Granada Television, they ventured on a path that led to the production of hugely popular, well-crafted children's series such as Danger Mouse and The Wind in the Willows. Cosgrove Hall Productions became one of Europe's most successful animation studios.
The pair's chalk-and-cheese personalities and complementary skills were a critical factor. Hall was calm and quietly spoken, with a talent for running the business and model-animation, while Cosgrove was slightly more temperamental and an expert cartoonist.
"Part of our success is that we argue like crazy, but always for the right things," Hall told the journalist Fiona McClymont in 2002. "Our roles overlap, which caused problems in the beginning.