Richard Armitage, as dwarf king Thorin Oakenshield, fought a dragon in Peter Jackson's "The Hobbit" trilogy. Now he's becoming one on "Hannibal."

The star makes his debut on the show, which has six episodes left before its run on NBC ends, at 10 p.m. ET on Saturday. His character will become the focal point as Will Graham (Hugh Dancy) and Hannibal Lecter (Mads Mikkelsen) pick up their battle of wits three years after the previous "Hannibal" story line ended in last week's episode.

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