Aimee Garcia arrives at Entertainment Weekly's annual Comic-Con party in San Diego, California.

American Gods star Ricky Whittle speaks on stage during Entertainment Weekly's "Brave New Warriors" panel at San Diego Comic-Con.

Bridget Regan appears on stage during the panel for TNT's The Last Ship during Comic-Con International 2017.

Vikings' Alex Hogh Andersen speaks on stage during San Diego Comic-Con International 2017.

Olivia Taylor Dudley promotes The Magicians during San Diego Comic-Con.

Westworld's Rodrigo Santoro speaks onstage during San Diego Comic-Con.

Riverdale's Ashleigh Murray attends Entertainment Weekly's annual Comic-Con party in San Diego, California.

Riverdale actress Camila Mendes arrives at Entertainment Weekly's annual Comic-Con celebration.

Dylan Bruce promotes NBC's Midnight, Texas during San Diego Comic-Con.

Sonequa Martin-Green arrives at Entertainment Weekly's annual Comic-Con party.

Cody Christian, who stars on MTV's Teen Wolf, arrives at Entertainment Weekly's annual Comic-Con party in San Diego, California.

Dania Ramirez attends ABC's Once Upon A Time panel during Comic-Con.

Ritesh Rajan appears at Entertainment Weekly's annual Comic-Con party.

The 100's Lindsey Morgan poses at Entertainment Weekly's annual party in celebration of Comic-Con 2017.

Blair Redford arrives at Entertainment Weekly's annual Comic-Con party in San Diego, California.

Asha Bromfield promotes Riverdale press line during Comic-Con International 2017.

Christopher Meloni speaks onstage during the "Brave New Warriors" panel at San Diego Comic-Con.

Wynonna Earp star Katherine Burrell appears at Entertainment Weekly's annual Comic-Con celebration.

Legends of Tomorrow actress Maisie Richardson-Sellers arrives at Entertainment Weekly's annual Comic-Con party.

James Marsden attends the panel for HBO's Westworld San Diego Comic-Con.

The 100's Tasya Teles arrives at the Entertainment Weekly party in celebration of Comic-Con.

Supergirl star Mehcad Brooks promotes The CW series during San Diego Comic-Con.

Halle Berry promotes Kingsman: The Secret Service while at Comic-Con International 2017 in San Diego, California.

Shadowhunters star Katherine McNamara attends the FANDOM Fest Party during San Diego Comic-Con.

Eme Ikwuakor appears onstage during the Marvel's Inhumans panel at San Diego Comic-Con.

Shelley Hennig promotes the final season of Teen Wolf aboard the IMDboat at San Diego Comic-Con.

Katheryn Winnick of History's Vikings at San Diego Comic-Con.

Matthew Daddario promotes Shadowhunters during Comic-Con International 2017 in San Diego, California.

Tyler Posey promotes the final season of MTV's Teen Wolf on SiriusXM's Entertainment Weekly Radio Channel Broadcasts at San Diego Comic-Con 2017.

Supernatural star Jensen Ackles arrives at Conan at San Diego Comic-Con.

Supernatural's Jared Padalecki appears at Comic-Con in San Diego, California.

Australian actress Lucy Fry is seen at a taping of Conan at San Diego Comic-Con on July 19, 2017.

Chris Pratt, the star of Marvel's Guardians of the Galaxy Vol. 2, appears in Hall H at San Diego Comic-Con in 2016.

Sherlock and Doctor Strange star Benedict Cumberbatch attends the Marvel Studios presentation in Hall H at San Diego Comic-Con in 2016.

Sophie Turner, who plays Sansa Stark on HBO's Game of Thrones, appears at the show's autograph signing at Comic-Con.

Lauren Cohan promotes AMC's The Walking Dead at San Diego Comic-Con in 2016.

The Walking Dead's Danai Gurira arrives at the Entertainment Weekly party at San Diego Comic-Con in 2015.

Halle Berry promotes CBS drama Extant during San Diego Comic-Con.

Jeffrey Dean Morgan appears on a panel for Extant during Comic-Con International 2015 at San Diego Comic-Con.

Lea Michele attends Entertainment Weekly's annual celebration at San Diego Comic-Con in 2015.

Actress Olivia Munn appears at San Diego Comic-Con in 2015 to promote her role in X-Men: Apocalypse.

Michael B. Jordan looks fly at San Diego Comic-Con in 2015.

Wilmer Valderrama promotes Fox's Minority Report during San Diego Comic-Con.

Ian Somerhalder attends the panel for The Vampire Diaries at San Diego Comic-Con in 2014.

Seth Meyers promotes Hulu's original series The Awesomes during San Diego Comic-Con in 2014.

Jessica Alba attends the panel for Frank Miller's Sin City: A Dame To Kill For during Comic-Con International 2014 in San Diego.

Megan Fox appears at San Diego Comic-Con in 2014.

Game of Thrones' Kit Harington, who plays Jon Snow, attends Entertainment Weekly's annual celebration at San Diego Comic-Con, in 2013.

Matt Smith, best known for his role as the Doctor on Doctor Who, appears at San Diego Comic-Con in 2013.

Zoe Kravitz attends a press event for Ender's Game and Divergent during Comic-Con 2013 in San Diego, California.

Game of Thrones star Emilia Clarke appears at Entertainment Weekly's annual celebration at San Diego Comic-Con in 2012.

Three-time Emmy winner and Breaking Bad star Aaron Paul attends the show's Season 5 premiere during Comic-Con 2012 in San Diego, California.

Jason Lewis attends San Diego Comic-Con in 2012.

Lucy Liu appears at Comic-Con in San Diego, California in 2012.

Olivia Wilde attends the premiere of Cowboys & Aliens during Comic-Con 2011.

Rose McGowan attends Entertainment Weekly's annual party at San Diego Comic-Con in 2011.

David Duchovny appears on a Showtime panel during San Diego Comic-Con in 2010.

Actress Liv Tyler speaks onstage during the Super panel at San Diego Comic-Con in 2010.

Michael C. Hall promotes Dexter while appearing on the Anti-Heroes of Showtime panel during San Diego Comic-Con in 2010.

Jennifer Love Hewitt attends the Entertainment Weekly and Syfy party at San Diego Comic-Con in 2009.