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 Adrian Pasdar Guest Star Maximilian Osinski Guest Star Patrick Cavanaugh Guest Star Troy Caylak Guest Star Kimberley Drummond Guest Star Shelly Robertson Guest Star Alastair Bayardo Guest Star Joss Whedon Executive Producer Jed Whedon Executive Producer Maurissa Tancharoen Executive Producer Jeffrey Bell Executive Producer Jeph Loeb Executive Producer James Oliver Writer Sharla Oliver Writer Kevin Tancharoen Director