Richard Hammond

British Television Presenter, Host of "Top Gear"

Richard Liu

Founder and CEO, JD.com

Richard Petty

Former NASCAR Race Car Driver

Richard Plepler

Former Chairman & CEO of HBO

Richard Thaler

Professor of Behavioral Science and Economics at the University of Chicago; Author of "Misbehaving: The Making of Behavioral Economics"

Richard Thaler: 'We Are Incapable of Learning From the Past ...

Rick Sorkin

VP of Talent & Strategy for WhoSay Inc.,

Rick Steves

TV Host, Bestselling Guidebook Author & Leading Authority on European Travel

Travel as a Political Act with Rick Steves

Ricky Gervais

Award-Winning English Comedian & Actor; Known for "The Office" and "Extras"

Rihanna

Grammy Award-Winning Singer, Songwriter & Actress; Creator of Savage X Fenty

Rita McGrath

Expert on Business Strategy in Uncertain Environments; Acclaimed Thinkers50 Thought Leader & Author

Rob Goffee and Gareth Jones

Rob Goffee and Gareth Jones won the prestigious McKinsey Award for the best article in HBR, entitled, "Why Should Anyone Be Led by You?" also the title of their new book on leadership, to be published by Harvard Business School Press in 2006.

Rob Lowe

Actor, Best-Selling Author, Podcaster & Philanthropist

Rob Reiner

Emmy Award-Winning Actor; Director; Producer & Activist

Robb Wilson

Author of "Age of Invisible Machines," Wall Street Business Journal Best Seller, Founder, Lead Designer and Chief Technologist behind OneReach.ai

Robbie Williams

Singer-Songwriter

Robert C. Merton

Economist, Distinguished Professor of Finance, MIT Sloan School of Management; Nobel Laureate in Economic Sciences

Robert Cialdini

New York Times Best-Selling Author; The Foundational Expert in the Science of Influence & Persuasion

Robert Curbeam

Former NASA Astronaut & Retired Captain in the U.S. Navy; Record Holder for Most Spacewalks During a Single Spaceflight

Robert De Niro

Award-Winning Actor Known for "Raging Bull," "The Godfather: Part II" & "The Irishman;" Co-Founder of Tribeca Productions

What’s Robert De Niro’s Favorite Robert De Niro Movie?

Robert Engle

Nobel Prize-Winning Economist