Paul Scheer

Producer, Comedian & Actor Known for His Roles in "Fresh off the Boat" and "Wet Hot American Summer: First Day of Camp"

Pete Sampras

Retired World No. 1 Tennis Player & International Tennis Hall of Famer; Winner of 14 Grand Slam Titles

Pete Sampras reveals wife Bridgette Wilson’s ovarian cancer battle: ‘Hard to watch’

RZA

Rapper, Record Producer & Musician; De Facto Leader of the Wu-Tang Clan

Keri Russell

Actress and Dancer; Starred on "Felicity" and "The Americans"

Maya Rudolph

Actress, Comedian & Former SNL Cast Member

Portia de Rossi

Actress, Known for"Ally McBeal" & "Arrested Development."

Phil Rosenthal

Television Writer and Producer; Creator and Star of "Somebody Feed Phil" on Netflix; Best Known for Creating "Everyone Loves Raymond"

Ray Romano

Comedian & Actor, Best-Known for "Everybody Loves Raymond"

Rich Roll

Athlete, Wellness Advocate, Motivational Speaker, Addiction Survivor & Author

Joe Rogan

Stand-Up Comedian & Host of The Joe Rogan Experience Podcast

Michelle Rodriguez

Actress Known for her Roles in "Avatar" and "The Fast and the Furious"

Chris Rock

Award-Winning Comedian, Actor, Writer, Producer & Director; Former SNL Cast Member

Smokey Robinson

Grammy-Winning Artist

Craig Robinson

Comedic Actor Known for "The Office," "Knocked Up" & "Brooklyn Nine-Nine"

Tim Robbins

Academy Award-winning Actor; Best Known for "The Brink"

Lisa Rinna

Author, Actress & Television Personality

Rob Riggle

Actor, Comedian, Writer, Producer, Director & Former U.S. Marine

Denise Richards

Actress, Former Fashion Model & Reality Star on Bravo's "The Real Housewives of Beverly Hills"

Retta

Stand-Up Comedian & Actress Known for "Parks and Recreation"

Paul Reiser

Actor, Writer & Stand-Up Comedian Known for Portraying Paul Buchman in "Mad About You"