Kyle Chandler Mark Russell Vera Farmiga Emma Russell Millie Bobby Brown Madison Russell Ken Watanabe Dr. Ishiro Serizawa Zhang Ziyi Dr. Ilene Chen / Dr. Ling Bradley Whitford Dr. Rick Stanton Sally Hawkins Dr. Vivienne Graham Charles Dance Alan Jonah Thomas Middleditch Sam Coleman Aisha Hinds Colonel Diane Foster O'Shea Jackson Jr. Chief Warrant Officer Barnes David Strathairn Admiral William Stenz Anthony Ramos Staff Sergeant Martinez Elizabeth Faith Ludlow First Lieutenant Griffin Jonathan Howard Asher Jonah CCH Pounder Senator Williams Joe Morton Dr. Houston Brooks Randy Havens Dr. Tim Mancini Lyle Brocato Executive Officer Bowman Jimmy Gonzales Commander Crane T.C. Matherne Master Sergeant Hendricks Kenneth Israel Argo Deck Officer Zellner Justice Leak Monarch Officer Martin Al Vicente Isla de Mara Fisherman Rose Bianco Isla de Mara Grandmother Gabriel L. Silva Isla de Mara Grandson Skylar Denney Argo Officer Arvin Kelli Garner Argo Officer Cross Tyler Crumley Young Andrew Lexi Rabe Young Madison Zac Zedalis Sergeant Travis Natalie Shaheen Lieutenant Bottin Jesse O'Neill Corporal Winston Joshua Leary Sergeant Baker Vince Foster G-Team Officer Tippett Shauna Rappold G-Team Officer Harryhausen Fiona Hardingham News Anchor #1 Orelon Sidney News Anchor #2 Paul Ryden News Anchor #3 T.J. Storm Godzilla Performance Capture Jason Liles King Ghidorah Performance Capture Seth Green Fighter Pilot (uncredited) Eli Roth Fighter Pilot (uncredited) Stephen Moyer Fighter Pilot (uncredited)