Robert Soto of Lawndale dressed as Batman.
Paul Forest of Las Vegas as Spock.
Sheila Noseworthy as Night Queen.
Kyle Pacek and Jordan Hoyle of Burbank as Roger Rabbit and Jessica Rabbit.
Matt Grimminger as Thanos with the makeup done by Walter Welsh.
Lavinia Ienza of Rome as Christmas Harley Quinn.
Silvia Robledo of San Diego wears a Day of the Dead costume.
Sarah McIntosh of Chicago as Courage.
Ashley Castro of San Diego as Gamora.
Luis Galvez of Mexico City as the Joker.
Fae Black of San Diego as the Joker.
Nikki Aspen of the Inland Empire as Two Face.
Morgan Fowler of Lake Elsinore is dressed as a clown.
John Pina of San Diego as Drax.
Michelle Pina of San Diego as Gamora.
Sara Demarest of San Diego as Wonder Woman.
Matthew Fruge of Tucson as the Joker.
Sarah Franchello of Los Angeles as Widowmaker.
Natalie Cunningham of Mission Viejo as Punisher.
Brittany Gorman of Santa Cruz as Darth Maul.
Amy Spence of Long Beach in her own peeler beads costume.
Sisters Samantha and Gayle Sherman of Los Angeles as Albino Twins from the Matrix.
Mark Sherman of San Diego as Neo.
Lan Alegre of San Diego as Catwoman.
Guillerma Gonzalez of Sacramento as Iron Man.
Melissa Tozeski of San Diego as Poison Ivy.
Scarlet Checkers of San Diego as Catwoman.
Alejandro Santos of Los Angeles as Batman.
David Schoeler of Riverside is dressed as Dragpool.
Mary Sorenson-Schwacher as Cruella de Vil.
Bernie Bregman of Los Angeles as Rick Flair.
Alex Waltron of Placentia as Hawk Girl.
Valor McConnell of Laguna Hills as Nightwing.
Cheng Chun Wing of Hong Kong as Spider Man.
Amber Skies of Phoenix as Nebula.
Sara Moni of Phoenix is dressed as Gamora.
Jacqueline Geohner of Los Angeles as Witchblade.
Dan Te of Camarillo as Kobe-Wan.
Millena Schmidt of Berlin as Spider Man.
Sylvia Vale of Los Angeles as Hela.
Stacy Fuqua of Phoenix as Thor.
Arlo Maginnis of San Diego as She Hulk.
Lane Giefstad of Los Angeles as Valkyrie.
Tiffany Kay of Fullerton as McCree from “Overwatch.”
Sheila Noseworthy of San Diego dressed as Mystique. (K.C. Alfred / San Diego Union-Tribune)
Brittany Stapleton of Ohio as Poison Ivy.
Alana Jordan of North Hollywood as a GLOW Harley Quinn.
Savannah Galvez of Sydney, Australia, as a robotic Catwoman.
Jordan Quinzon of Upland as the Joker.
Heather Cottrell of San Diego as Mystique.
Armondo Abarca of Los Angeles as Batman.
Sandra Sanchez Culver City as Beetlejuice.
Zachary Schultz of Orlando as Doc Brown.
Elma Agatep as Darth Maul.
Natalie and Anthony Young of Martinez, Calif., as Mary Poppins and Bert.
Ariane Brandt of San Diego as Taako from Adventure Zone.
Dalila and Raymond Rodriguez of Los Banos dressed as Jokers. (K.C. Alfred / San Diego Union-Tribune)
Discord Addams of Chicago dressed as Cenobite from “Hellraiser.”
Christopher Canole of La Jolla as Dude Vader.
Nikki Skelton of Lancaster, left, and Barbara Glennon of La Mirada dressed as Max and Caroline from “Two Broke Girls.”
Danny Deaver of El Centro as Stormtropper.
Carrie Gomes of San Deigo dressed as Wonder Woman. (K.C. Alfred / San Diego Union-Tribune)
Kiana Gomes of San Diego as Sombra from “Overwatch.”
Lucas Spencer of Orange as Pennywise.
Rabecca Woodruff of Irvine as Wonder Woman.
Roxi Gasaway of Los Angeles as Ivar the Boneless.
Shane Curran of San Bernardino as Floki.
MacKenzie Stetzler as Tina from “Bob’s Burgers.”
Alexander Desser of San Diego as Iron Man.
M Blackburn of Atlanta at as Negasonic Teenage Warhead.
Destiny Lowe of Pierre, S.D., as Harley Quinn.
Caleb Lowe of Pierre, S.D., as Hellboy.
Elijah Garcia of San Diego as Beast Boy.
Iliana Solorzano of San Diego as Raven.
Ashton Gable of Anaheim as Daenerys Targaryen from “Game of Thrones.”
Allyson Slough of Vista was dressed a puppy.
Harry and Karen Middleton of Fullerton as the Mad Hatter and Queen of Hearts.
Avery Auman of Los Angeles as Dark Phoenix.
Emily Auman of Greensboro, N.C., as Emma Frost.
Lauren Fellows of Santa Ana as Ahsoka Tano.
Joshua Bentan of Los Angeles as Obi-Wan Kenobi.
Ariel Pasual of San Diego as Poison Ivy.
Aaron Blossom and Conner Bright of Los Angeles as Superman and Lois Lane.
David Castillo of Los Angeles as a character from “The Purge.”
Diana Terranova of West Hollywood as Ghostbusters.
Nate Guioguio of San Diego as the Joker.
Michael Cherry of Redlands as the Scarecrow from “Batman.”
Brittany Sprawling of San Diego as Gamora.
Michael Norris of Los Angeles as Deadpool.
Sarah Rice of San Diego as Dr. Strange.
Michale Shupe of Azusa as Carl from Up.
Joseph Crandall of Burbank as Star Lord.
Manuel Garcia of Imperial Beach as Michael Myers.
Kaitlyn Gallegos of Vista as a Jawa.
Eli Garcia of San Diego as Killer Croc.
James Cherry of Redlands as Darth Trump.
Leah Sprenger of Vancouver, left, and Jo LoBianco of Ocean Beach, both dressed as Harley Quinn. (K.C. Alfred / San Diego Union-Tribune)
Frances Padua of Vancouver dressed as Kurenai Yuhi. (K.C. Alfred / San Diego Union-Tribune)
Angel Mendoza of San Diego as Iron Patriot.
Torianna Washalaski of San Diego as the Slime Rancher video game.
Sean Derbyshire of Florida as Ant-Man.
Chris Fraley of Jersey City dressed as his own character, Black Man.
Michael Miller of San Diego as a Shadow Stormtrooper.
Eiraina Schmolesky of Marietta as a character from “Star Trek.”
Alberto Hurtado of Chula Vista as Cupid.
Tristan Eljin of Temecula as Owen from “Jurassic World.”
Savanna Price of San Diego dressed as a clown. (K.C. Alfred / San Diego Union-Tribune)
Krystle Starr of Dallas as Liberty Belle from Glow.
Amy Blatt and Roger Chagnon of San Diego as Chicken of the Sea and Charlie Tuna.
Sherman Balakeley of Big Bear as John Coffey from “The Green Mile.”
Javon Rogers of Chula Vista as Spider Man.