Regular Show: Mega Marvel Monday

Regular Show: Mega Marvel Monday is the first crossover between Regular Show & The Marvel Universe.

Plot
On a Day Like No Other, Heroes from the Marvel Universe comes to the Park for help when they were sent to another world by Garrett Bobby Ferguson hiring a group of Supervillians.

Regular Show

 * J.G. Quintel - Mordecai, Hi-Five Ghost
 * William Salyers - Rigby
 * Sam Marin - Benson, Pops, Muscle Man
 * Mark Hamill - Skips
 * Roger Craig Smith - Thomas, Garrett Bobby Ferguson Jr.
 * Steven Blum - Techmo, Muscle Bro
 * Carl Weathers - Basketball King
 * Juilian Holloway - Death
 * Troy Baker - Park Avenue, Klorgbane the Destroyer
 * Robin Atkin Downes - Gary
 * David Kaye - Reginald
 * Kurtwood Smith - Gene
 * Andrew Kishino - Doug McFarland

Marvel Universe

 * Yuri Lowenthal - Spider-Man
 * John DiMaggio - Wolverine, Hulk, Whiplash
 * Daran Norris - Captain America, Venom
 * Nolan North - Iron Man
 * Dave Boat - Thor
 * Charlie Adler - Deadpool, M.O.D.O.K.
 * Troy Baker - Moon Knight
 * Clancy Brown - Red Skull
 * Tim Curry - Doctor Doom, J.A.R.V.I.S
 * Robin Atkin Downes - Loki
 * James Arnold Taylor - Magneto
 * J.G. Hertzler - Taskmaster
 * Stan Lee - Himself