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Harry Potter's Jason Isaacs Is the Captain of Star Trek: Discovery

Isaacs will lead the crew as Captain Lorca

Liam Mathews

Jason Isaacs, the actor best known for playing the wicked Lucious Malfoy in the Harry Potter series of films, is joining another iconic franchise -- but as a good guy this time.

Isaacs will be playing Captain Lorca in CBS All Access' upcoming seriesStar Trek: Discovery, TVGuide.com has learned. He'll topline the now-complete cast, which also includes Sonequa Martin-Green, Michelle Yeoh, Anthony Rapp, Doug Jones and James Frain.

Jason Isaacs

Jason Isaacs

Roy Rochlin, FilmMagic

Isaacs announced the news in a quickly-deleted tweet that showed the captain's chair of the Starship Discovery with the caption "looks comfy."

Recent Juilliard graduate Mary Wiseman will also be joining the cast as Tilly, a Starfleet Academy cadet assigned to the Discovery for her final year of study

Star Trek: Discovery will premiere in late summer or early fall.

(Full disclosure: TVGuide.com is owned by CBS.)