LeVar Burton

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

George Takei

Actor, Social Justice Activist & Social Media Mega-Power

Sean Astin

Actor, Director, Producer & Mental Health Advocate; Known For "Lord of the Rings"

Emily Calandrelli

MIT Engineer, Emmy-nominated TV Host, Author

Ramez Naam

Computer Scientist, Science Fiction Author & Co-Chair of Energy & Environment at Singularity University

Jamie Metzl

Leading Technology & Healthcare Futurist; Founder & Chair, OneShared.World

Jamie Metzl | Speaker Reel

Laura Snyder

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

Olivia Munn

Television & Film Actress Known for "The Newsroom," "X-Men: Apocalypse" & "Magic Mike"; Breast Cancer Survivor & Women's Rights Advocate

Olivia Munn Opens Up About Her "Terrifying" Breast Cancer Diagnosis

Michael Stevens

YouTube Sensation; Best Known as Vsauce

Bart Knols

Scientist, Author, Entrepreneur

Wil Wheaton

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

James Dashner

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

William Shatner

Star Trek Captain, Emmy & Golden Globe Winner, Author

Oscar Isaac

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

Ari Popper

Founder & CEO of SciFutures, Innovation Executive, Sci-Fi Strategist

Orson Scott Card

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

Michael Nielsen

A physicist turned writer, Michael Nielsen believes online communication and collaboration tools are revolutionizing the way we make scientific discoveries.

Tony Tellado

Producer / Host at Sci-Fi Talk

Eric Berlow

Data Ecologist, Complexity Scientist

D.B. Weiss

Executive Producer & Writer, "Game of Thrones"