Eddie Marsan will play Thrain in The Lord of the Rings: The Rings of Power season 3, putting a new claimant into Khazad-dûm’s crown dispute before the season arrives on Nov. 11 on Prime Video. Thrain enters as Durin III’s older son and the technically rightful heir, even though Durin IV was anointed successor after the season 2 finale.
That succession split is the cleanest reason this casting matters. Marsan is not arriving as a background addition; he is stepping into the argument over who should inherit the crown after King Durin III sacrificed himself to deal with a Balrog he had accidentally awoken.
Nov. 11 on Prime Video
The third season launches on Nov. 11, which puts the casting reveal right up against the next chapter of the series rather than leaving it as a distant production note. For a show built around power shifts, the new season now has a specific political fault line: Thrain for the crown, or the anointed Durin IV holding the line.
Marsan said he was drawn in by the series itself and by the chance to needle Peter Mullan. “I wanted to do it because I thought the show was brilliant, the writing was great. I thought the action was amazing,” he said. “But also to be able to take the piss out of Peter and tell him that I’m playing his son.”
Janine Schneider-Marsan and 2,000 pairs
His family history with the franchise goes back decades. Marsan said Janine Schneider-Marsan worked as a makeup artist on the original Lord of the Rings film, and that his old house once held around 2,000 pairs of Orlando Bloom’s ears in the loft. “In our old house, in the loft, we had around 2,000 pairs of Orlando Bloom’s ears,” he said. “I was going to bring them to “Rings and Powers” to see if they wanted them!”
That kind of off-screen overlap is rare, but it fits the scale of the role he is taking on now. Marsan said he admired Peter Mullan’s and Rory Kinnear’s work in the series, and the character he is playing moves the succession problem from a final-season turn into the engine of the next one.
Thrain and Durin IV
Thrain’s description as the rightful heir creates the pressure point around which season 3 has to turn. Durin IV has already been anointed, but the older son’s claim gives the story a built-in conflict the moment Marsan appears onscreen, and that should keep Khazad-dûm’s crown from feeling settled even after the season 2 finale.
Marsan said he would next appear in the second series of Netflix’s Supercell and then as J. Edgar Hoover in Kennedy, but this role is the one that changes the shape of The Lord of the Rings: The Rings of Power. The show now has a succession battle with two claimants, and Nov. 11 is when that argument starts paying off.
