I thought that it would be helpful to provide a list of key characters and who might play them to give an idea of what they might look like.

Elle or Elissa - Gabriella Wilde

Human? Elfling? Tbc 😉

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Zane - David Gandy

Dragonite - Elle's guardian

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Darish - Miles McMillan

Wood elf - Elle's guardian

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The High King of Elysium - Jared Leto

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Lord Nero - Jonathan Rhys Meyers

Dark elf

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Aren - Christopher (Brown) Mason

Animage

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Leo - Chris Hemsworth

Animage

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Tabbi - Dakota Blue Richards

Animage

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Belinda - Megan Fox

Animage

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Celestia - Emilia Clarke

Queen of the Light Elves aka the White Queen

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Morpheus - Ian Somerhalder

King of the Dark Elves aka the Dark King - co rules with his half sister Celestia

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Lord Kai - Joe Manganiello

Dragonite

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Seraphina - Kim Kardashian

Queen of the Dragonites

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Dawn - Tyra Banks

Dragonite