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

John Boyega

British Actor Known for "Star Wars"

Benedict Cumberbatch

English Actor Best Known for "Sherlock;" Ambassador for the Motor Neurone Disease Association

Michael Ironside

Actor, Voice Actor, Producer, Film Director and Screenwriter

Alan Ritchson

Actor, Model & Singer; Best Known for Amazon's "Reacher" & CW's "Smallville"

Clark Gregg

Actor Known For "The New Adventures of Old Christine" & "The Avengers"

Paul Reiser

Actor, Writer & Stand-Up Comedian Known for Portraying Paul Buchman in "Mad About You"

Joe Pantoliano

Emmy Award-Winning Actor & Film Producer; Mental Health Advocate

David Tennant

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

Simon Lovell

English Comedy Magician, Card Shark Actor and Con Man

Nicholas Brendon

Actor; Known for "Buffy the Vampire Slayer" and "Criminal Minds"

Martin Freeman

English Actor Best Known for the UK's "The Office," "Sherlock" and "The Hobbit" Film Trilogy

Emma Bell

Actress Who Played Amy in "The Walking Dead" and Emma in the TNT Drama Series "Dallas"

IronE Singleton

Best known as Theodore "T-Dog" Douglas on AMC's "The Walking Dead"

Simon Helberg

Actor & Comedian; Best Known for Role of Howard Wolowitz on "The Big Bang Theory"

Jennifer Morrison

Actress, Model & Film Producer; Known For "House" and "Once Upon a Time"

Justin Lee

Korean-American Actor Known for his Role as Annyong Bluth in the Fox Sitcom "Arrested Development"

Ki Hong Lee

Actor Known for "Unbreakable Kimmy Schmidt" & "The Maze Runner"

Human Connection in "Little America": An Interview with Ki Hong Lee

Pedro Pascal

Emmy-Nominated Chilean Actor Known for "The Mandalorian," "Narcos" & "The Last of Us"

Elizabeth Henstridge

Actress Known for her Role on "Agents of S.H.I.E.L.D."

Clare Kramer

Actress Best Known for "Bring It On" & "Buffy the Vampire Slayer"; Creator of GeekNation.com

Anthony Mackie

American Actor & Film Producer, Known for "Captain America: The Winter Soldier," "The Hurt Locker" & "Ant-Man"

Chris Pratt

Actor Known for "Parks & Recreation" & "Guardians of the Galaxy"

Emily Kinney

Actress Best Known for Her Role as Beth Greene on "The Walking Dead"

Evanna Lynch

Actress Known for her Role as Luna Lovegood in the "Harry Potter" Series

Sean Astin

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

Felicia Day

Creator and Star of the Web Series "Dragon Age: Redemption" and "The Guild"

Woody Allen

Legendary Director, Screenwriter & Actor

Sigourney Weaver

Golden Globe-Winning Actress & Environmentalist