Dr. Jonas Miller is the main antagonist in the 1996 disaster film, Twister. He is a smug and unscrupulous (but well-funded) fellow meteorologist and storm chaser. He invented a device almost identical to DOROTHY, he vows to help Jo deploy DOROTHY before Miller can claim credit for the idea.

He was portrayed by Cary Elwes.

At the near end of the film, The rival team hubris and lack of instinct proves fatal as Dr. Miller's truck is swept up and destroyed in the last tornado due to overzealous chasing, despite Bill and Jo's warnings.