Elizabeth Holmes

Self - CEO and Founder of Theranos (archive footage)

Alex Gibney

Self - Narrator / Interviewer

Dan Ariely

Self - Behavioral Economist

Roger Parloff

Self - Fortune

Ken Auletta

Self - The New Yorker

Erika Cheung

Self - Lab Associate

Cheryl Gafner

Self - Receptionist

Dave Philippides

Self - Engineer

Douglas Matje

Self - Biochemist

Ryan Wistort

Self - Research & Development

Tony Nugent

Self - Vice President, Product Development

Phyllis Gardner

Self - Professor of Medicine, Stanford University

Channing Robertson

Self - Theranos Advisor

Don Lucas

Self - Investor