Young Justice/Scooby-Doo: ???

Scooby and Shaggy get transported into Earth-16 where they stumble upon the Team, as they help them get back home before Savage uses the weapon to go through other worlds.

Characters:

 * Scooby-Doo (Frank Welker)
 * Shaggy Rogers (Matthew Lillard)
 * Fred Jones (Frank Welker)
 * Daphne Blake (Grey DeLisle)
 * Velma Dinkley (Mindy Cohn)
 * The Team:
 * Kaldur'ahm/Aqualad (Khary Payton)
 * Dick Grayson/Nightwing (Jesse McCartney) - Shaggy and Scooby befriend him, because Shaggy and Scooby appreciated the 1st Robin better
 * Wally West/Kid Flash (Jason Spisak) - gets frustrated with Shaggy and Scooby stealing his food
 * Connor Kent/Superboy (Nolan North)
 * M'Gann Morzz/Miss Martian (Danica McKeller)
 * Artemis (Stephanie Lemelin)
 * Zatanna (Lacey Chalbert)
 * Raquel Irvin/Rocket (Kittie)
 * Garth/Tempest (Yuri Lowenthal)
 * Tula/Aquagirl (Cree Summer)
 * Donna Troy/Troia (Lacey Chalbert)
 * Jason Todd/Robin II (???)
 * Freddy Freeman/Lieutenant Marvel (???)
 * Mary Bromfield/Sergeant Marvel (???)
 * Barbara Gordon/Batgirl (Alyson Stoner) - Shaggy and Scooby also recognize her
 * Karen Beecher/Bumblebee (Masasa Moyo)
 * La'Gann/Lagoon Boy (Yuri Lowenthal)
 * Garfield Logan/Beast Boy (Logan Grove)
 * Mal Duncan (Kevin Michael Richardson)
 * Justice League:
 * Clark Kent/Superman (Nolan North)
 * Bruce Wayne/Batman (Bruce Greenwood) - also recognized by Shaggy and Scooby
 * Diana/Wonder Woman (Maggie Q)
 * Barry Allen/Flash (George Eads)
 * Hal Jordan/Green Lantern - Cameo
 * Arthur/Aquaman - Cameo
 * J'onn J'onzz/Martian Manhunter (Kevin Michael Richardson)
 * Oliver Queen/Green Arrow - Cameo
 * Katar Hol/Hawkman - Cameo
 * Shayera Hol/Hawkwoman - Cameo
 * Zatara/Dr. Fate - Cameo
 * Nathaniel Adams/Captain Atom - Cameo
 * Dinah Laurel Lance/Black Canary (Vanessa Marshall)
 * John Stewart/Green Lantern - Cameo
 * Billy Batson/Captain Marvel - Cameo
 * Red Tornado (Jeff Bennett)
 * Ray Palmer/Atom - Cameo
 * Eel O'Brien/Plastic Man - Cameo
 * Augustus Freeman/Icon - Cameo
 * The Light:
 * Vandal Savage (Miquel Ferrer)
 * Ra's al Ghul (Oded Fehr)
 * Lex Luthor (Mark Rolston)
 * Queen Bee (Marina Stiris)
 * Ocean Master (Roger Craig Smith)
 * Brain (Corey Burton)
 * Klarion the Witch-Boy (Thom Adcox)
 * Joker (Brent Spiner) - sent by Savage to deal with Shaggy and Scooby
 * Penguin (???) - sent by Savage to deal with Shaggy and Scooby
 * Gentleman Ghost (Jonathan Ryes-Davies)
 * Solomon Grundy (Fred Tatasciore)

Real World:

 * Batman (Frank Welker)
 * Robin (Jason Marsden)
 * Joker (Corey Burton)
 * Penguin (Jeff Bennett)

Plot:
TBA