Bill Nye

"The Science Guy"; Science Communicator, TV Presenter & Mechanical Engineer; Climate Change Activist

Mayim Bialik

Neuroscientist, Mental Health Advocate & Actress Known for "The Big Bang Theory"

George Takei

Actor, Social Justice Activist & Social Media Mega-Power

Derek Hough

Dancer, NYT Bestselling Author, Emmy Award Winner for Outstanding Choreography & Six-Time Champion of ABC's "Dancing with the Stars"

Patricia Heaton

Emmy Award-Winning Actress Known for "Everybody Loves Raymond" & "The Middle"

Tracee Ellis Ross

Actress, Producer; Chief Executive Officer at PATTERN

Giancarlo Esposito

African-Italian American Actor, Director, Producer; Best Known for his Role as Gustavo "Gus" Fring on AMC's Breaking Bad

Amanda Seales

Poet, Spoken Word Artist & Media Personality Known for HBO's "Insecure;" Anti-Smoking Activist

Anderson Cooper

Journalist, TV Personality, Anchor of CNN's "Anderson Cooper 360°"

Michael J. Fox

Actor, Author and Advocate; Founder, The Michael J. Fox Foundation for Parkinson’s Research

Michael J. Fox on latest Parkinson's research and how he's ...

Nikki Glaser

Stand-Up Comedian & Podcast Host; Known for "Last Comic Standing" and "Inside Amy Schumer"

Henry Winkler

Actor, Producer, Director & Best-Selling Author; Best Known for "Happy Days"

Alesha Renee

Actress and TV Personality; Appeared on "Guy Code," "E! News," "HotWyred," "The 5ive," BET and the BET Awards Pre-Show

Kenan Thompson

Prime Time Emmy Award-Nominated Actor; "Saturday Night Live" Cast Member; Star on NBC's "Kenan"

When I Was Your Age: Life Lessons, Funny Stories & Questionable Parenting Advice from a...

Arnold Schwarzenegger

Actor, Producer, Director, Writer; California’s 38th Governor; Host of "Celebrity Apprentice"

Charlene Strong

Gay Rights Activist

Cynthia Nixon

Actress Known for her Role as Miranda Hobbes on HBO's "Sex and the City"; Former Candidate for Governor of New York

Dan Abrams

Chief Legal Affairs Anchor at ABC News & Founder of Abrams Media

Chelsea Handler

Comedian, TV Personality & Author

Danny Glover

Acclaimed Actor, Producer & Leading Social Activist