- “Luckily for me, my first voiceover gig was on Thomas & Friends, it was in a film called Sodor’s Legend of the Lost Treasure. I was always a massive fan of Thomas as a kid and so to fall into something as huge as that, on my first voiceover job, is a blessing. I’m very lucky that they chose me.”
- ―Nathan, Tresa Magazine Interview, 2018
- Brown auditioned to be a part of the voice cast using old Bill, Ben, Diesel, James, Samson and Jack lines.
- 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.
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