- Both he and TUGS voice actor Timothy Bateson had roles in "Harry Potter and the Order of the Phoenix".
- Brown auditioned to be a part of the voice cast using old Bill, Ben, Diesel, James, Samson and Jack lines.
- He, Simon Fisher-Becker, Robert Wilfort, John Hurt, Jamie Campbell Bower and Eddie Redmayne have all had roles in the "Harry Potter" film franchise.
- In the UK theatrical release and the US and Australian DVD releases of Sodor's Legend of the Lost Treasure, he is credited as Nathan Clarke Brown. However, in the UK DVD release, he is just credited as Nathan Clarke.