Madalyn Horcher, Ty Tennant and Sebastian Croft will guest star in the third season.
Parker, whose credits include Into The Dark, The Flash and The Vampire Diaries will play Malcolm, part of the Sisterhood of Dada. He is a quiet, sensitive and thoughtful soul who would often rather be invisible than face this unforgiving world.
Palmer, Teenage Bounty Hunters and Agent Carter actor Wynn Everett will recur as Shelley Byron aka The Fog, part of the Sisterhood of Dada. Supposedly a deadly terrorist, Shelley is charming, seductive, poetic and a bit mad.
Mussenden joins as Lloyd Jefferson aka Frenzy, part of the Sisterhood of Dada. A sculptor of strange life-like masks who is covered with tattoos and scars – the memories and injustices that immortalize his life – he is cryptic and stoic with a capacity for extreme devastation.
Doom Patrol Casts Sisterhood of Dada and The Dead Boy Detective Agency for Season 3 on HBO Max — Get Details msn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from msn.com Daily Mail and Mail on Sunday newspapers.