Very exciting news that Doom Patrol S3 is expected to premiere on HBO Max on 26th August 2021 with episodes 1 & 2 both airing the same day. This is according to Lance Aufresser of The Doom Patrol Facebook Group. It was announced in March that Michelle Gomez will be joining the third season cast as a series regular, playing Madame Rouge, "a complicated and electrifying eccentric".
Additionally Doom Patrol has just been renewed for a fourth season, though no other details have been released yet for S4.
Featured image was posted on Instagram by Michelle Gomez on 27th April 2021 from behind the scenes on the set of Doom Patrol season 3.