Rene Thom

mathematician

Rene Magritte

artist

Regina Spektor

singer-songwriter

Rebel Wilson

actress

Rebecca Goldstein

novelist

Roger Bacon

philosopher

Roger Ascham

writer

Rod Blagojevich

former-governor-of-illinois

Robertson Davies

novelist

Robert Towne

screenwriter

Robert Toth

Robert Sternberg

psychologist

Robert Penn Warren

poet

Robert McKee

author

Thomas Carlyle

philosopher

Russell Malone

guitarist

Rudy Rucker

computer-scientist

Rudolph A. Marcus

chemist

Rudolf Steiner

philosopher

Rosie O'Donnell

comedian