There's nothing quite like San Diego Comic-Con to bring together the Warner Bros. TV family. With the annual meeting of geeks, nerds and hardcore fans set to host more than 20 panels for a variety of WBTV shows -- from "The Flash" and "Arrow" to newcomers like "Riverdale" -- many of the shows' stars decided to get the word out in the best way they know how: Snapchat.

RELATED: The Court of Owls is coming for ‘Gotham’ in Comic-Con poster

The stars of "Gotham," "Supergirl," "The 100" and many more all took quick Snapchat videos of themselves using a number of very silly filters to make puns and let the world know they're Comic-Con bound. Where else will you see Vanessa Hudgens from the upcoming "Powerless" as an actual unicorn, "The 100's" Eliza Taylor with a piece of bread for a head or "iZombie" star David Anders showing off his "corrective facial surgery"?

RELATED: ‘Supergirl’ is getting a new boss — but, what about Cat Grant?

With 21 shows set to take over Comic-Con -- their biggest presence yet -- WBTV is clearly angling to rule San Diego. In addition to panels, there will be appearances, signings and screenings throughout the weekend for a variety of current and upcoming shows. You can check out the full schedule on the San Diego Comic-Con website. And if you see your favorite stars or want to take selfies in your favorite WBTV panels, don't forget to hashtag your Snapchat photos with #WBSDCC.