Elizabeth Holmes

Self - Narrator / Interviewer

Alex Gibney

Self - Behavioral Economist

Dan Ariely

Self

Errol Morris

Self - Research Engineer

Tyler Shultz

Self - The New Yorker

Ken Auletta

Self - Fortune

Roger Parloff

Self - The Wall Street Journal, Author, Bad Blood

John Carreyrou

Self - Investor

Tim Draper

Self - Lab Associate

Erika Cheung

Self - Receptionist

Cheryl Gafner

Self - Engineer

Dave Philippides

Self - Biochemist

Douglas Matje

Self - Research & Development

Ryan Wistort

Self - Vice President, Product Development

Tony Nugent

Self - Professor of Medicine, Stanford University

Phyllis Gardner

Self - Investor

Don Lucas

Self - Theranos Advisor

Channing Robertson

Self - Ian Gibbons' Wife

Rochelle Gibbons

Self - Facilities Coordinator

Matt Hernan

Self - Chief Creative Officer

Patrick O'Neill

Self

Stephanie Seitz

Self - Phlebotomy Trainer

Serena Stewart

Self - Boies, Schiller & Flexner LLP

David Boies III

Self (archive footage)

Pattie Sellers

Madeleine Albright

Self (archive footage)

Charlie Rose

Self (archive footage)

Thomas A. Edison

Self (archive footage)

George Shultz

Self (archive footage)

James Mattis

Self (archive footage)

Bill Clinton

Katie Couric

Self (archive footage)

Henry Kissinger

Jim Cramer

Self (archive footage)

Joe Biden

Betsy DeVos

Self (archive footage)

Richard Nixon

Dianne Feinstein

Self (archive footage)

Barack Obama

Self (archive footage)

Sanjay Gupta

Self (archive footage)

Rupert Murdoch

Ronald Reagan

Maria Shriver

Serena Williams