
Biography
Thomas Cullen is a Welsh actor and director. He had roles in the independent film Weekend (2011), as Anthony Foyle, Viscount Gillingham in the television series Downton Abbey (2013-14), Sir Landry in the historical drama series Knightfall (2017-19), John Palmer in the BBC crime drama series The Gold (2023-25), and Ser Luthor Largent in the HBO fantasy drama series House of the Dragon (2026). He also played Thomas Seymour in Becoming Elizabeth.
Source: Wikipedia · CC BY-SA
Filmography26 titles

House of the Dragon

Black Mirror

Downton Abbey

Orphan Black

Genius

The Gold

Weekend

Invasion

Knightfall

Desert Dancer

Gunpowder

My Happy Ending

Zebra Girl

Mine

Trespasses

Insomnia

My Son

The Other Half

100 Streets

Mudtown

Pink Wall

The Last Days on Mars

Happily Ever After

Barbarians

The One Show

Castle in the Ground