Clark Gregg Agent Phil Coulson Actor Ming-Na Wen Agent Melinda May Actor Chloe Bennet Daisy Johnson Actor Iain De Caestecker Agent Leo Fitz Actor Elizabeth Henstridge Agent Jemma Simmons Actor Henry Simmons Agent Alphonso "Mack" MacKenzie Actor John Hannah Holden Radcliffe Actor Jason O'Mara Guest Star Mallory Jansen Guest Star Maximilian Osinski Guest Star Zach McGowan Guest Star Frederick Lawrence Guest Star Stivi Paskoski Guest Star Alexander Chernyshev Guest Star Joss Whedon Executive Producer Jed Whedon Executive Producer Maurissa Tancharoen Executive Producer Jeffrey Bell Executive Producer Jeph Loeb Executive Producer Matt Owens Writer Wendey Stanzler Director