Charles Peter Keep Edwards (born 1 October 1969) is an English actor with a career in theatre, TV, and film, most notable for playing Michael Gregson in Downton Abbey (2012–2013), Dr Alexander McDonald in The Terror (2018), Sir Martin Charteris in The Crown (2019–2020), and Lord Celebrimbor in The Lord of the Rings: The Rings of Power (2022–2024). (Via Wikipedia)