George Takei

Actor, Social Justice Activist & Social Media Mega-Power

LeVar Burton

Literacy Advocate & Actor Known for "Roots," "Star Trek" & "Reading Rainbow"

Sean Astin

Actor, Director, Voice Artist & Producer Known For "Lord of the Rings"

Wil Wheaton

Actor, Author & Blogger; Known for "Star Trek: The Next Generation" & "The Big Bang Theory"

William Shatner

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

John Cho

Actor Known for "Harold & Kumar" Series & "Star Trek" Reboot Series

James Dashner

Author of Many Children's Fantasy Series and Adult Books, Including "The Maze Runner" Series

Olivia Munn

Television & Film Actress; Known for "Newsroom" & "X-Men: Apocalypse"

Olivia Munn on Jon Stewart | 2022 Mark Twain Prize

Laura Snyder

Professor; Science Historian; Philosopher; Author of "The Philosophical Breakfast Club"

Bruce Sterling

Futurist; Cyberpunk Sci-Fi Author; Journalist; Editor; Critic

Cory Doctorow

Science Fiction Author, Tech Activist & Co-Editor of Boing Boing

David Duchovny

Actor, Writer & Director Known for "The X-Files," "Aquarius" & "Californication"

George R.R. Martin

Author of the "Game of Thrones" Series

Tatiana Maslany

Canadian Actress; Known for "Orphan Black"

Orson Scott Card

Science Fiction Novelist; Best Known for his "Ender's Game" Series

Brent Spiner

Actor Best Known for "Star Trek: The Next Generation"

Bruce Boxleitner

Actor & Science Fiction and Suspense Writer

Jennifer Hetrick

Actress; Best Known for "Star Trek: Deep Space 9" & "Next Generation"

Billy Dee Williams

Emmy Award-Nominated Actor, Artist & Singer; Known for the "Star Wars" Franchise

Jonathan Frakes

Actor, Author and Writer; Best Known for Playing Commander William T. Riker in "Star Trek"