George Takei

Actor, Social Justice Activist & Social Media Mega-Power

Viola Davis

Academy Award-Winning Actress, Producer & New York Times Best-Selling Author

Viola Davis on Speaking Up, Challenging Stereotypes

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Retta

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

Kate McKinnon

Emmy Award-Winning Comedian & Former Cast Member of "Saturday Night Live"

Vince Gilligan

Creator, "Breaking Bad" & "Better Call Saul"

Mario Lopez

Actor & Entertainment Journalist

Henry Winkler

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

Kevin O'Leary

Founder of O'Leary Financial Group; Venture Capitalist & Financial Expert Known for "Shark Tank"

William Shatner

Emmy-Award Winning Actor, Known for "Star Trek" & "Boston Legal"

Nicole Byer

Comedian, Actress & Writer; Co-Host of "Wipeout"

Nia Long

NAACP Image Award-Winning Television & Film Actress, Philanthropist

Lin-Manuel Miranda

Tony Award-Winning Actor, Composer, & Lyricist; Known for "In The Heights," "Bring it On the Musical" & "Hamilton"

Cecily Strong

Actress, Comedian, "Saturday Night Live" Cast Member & Former Co-Anchor of "Weekend Update"

Thomas Middleditch

Actor, Voice Actor, Comedian, Screenwriter Known for "Silicon Valley"

Ellie Kemper

Actress, Comedian, & Writer Best Known for Her Roles in "The Office" & "Unbreakable Kimmy Schmidt"