Widowed British aristocrat and industrialist who funds and organizes the Arctic expedition to find his missing son, Donald. He leads the initial search party, is captured by the hidden Norse civilization, and is eventually rescued and allowed to depart in peace.
Wealthy patron hires inventor to lead the journey.
Local Inuk assists the wealthy patron in navigating the Arctic.
Protagonist faces execution by the island's authoritarian ruler.
Protagonist relies on local ally for survival.
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