George Takei

Actor, Social Justice Activist & Social Media Mega-Power

LeVar Burton

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

Olivia Munn

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

Olivia Munn on Jon Stewart | 2022 Mark Twain Prize

William Shatner

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

Oscar Isaac

Actor Known for "Inside Llewyn Davis," "Star Wars: Episode VII - The Force Awakens" & "X-Men: Apocalypse"

George R.R. Martin

Author of the "Game of Thrones" Series

D.B. Weiss

Executive Producer & Writer, "Game of Thrones"

Karen Gillan

Actress, Known for Her Role as Amy Pond on "Doctor Who" & Nebula in "Guardians of the Galaxy"

John Cho

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

Ernest Cline

Screenwriter & Author

David Duchovny

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

Ken Sibanda

Constitutional Attorney, Movie Director, Science Fiction Author

Kazuo Ishiguro

Nobel Prize-Winning Novelist, Screenwriter & Musician; Known for "The Remains of the Day" & "Never Let Me Go"

Kazuo Ishiguro: The Waterstones Interview

Jonathan Frakes

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

Matt Smith

Eleventh Incarnation of the Doctor in the British TV Series "Doctor Who" also stars in Netflix's "The Crown"

David Tennant

Scottish Actor Known for "Doctor Who" and "Broadchurch"

Milo Ventimiglia

Actor, Producer & Director Known for His Roles in "This Is Us" "Gilmore Girls" & "Heroes"

Andy Weir

Science Fiction Author, Known for "The Martian"