Total Suspenseful All-Stars

It is a 2013 tv series.
Cast
Rainbow Dash (human) - Chris McLean
Discord - Chef Hatchet
Karl/Louis/Stealth Elf/Hector/Mysterion/Kaos - Mike/Chester/Svetlana/Vito/Manitoba Smith/Mal
Ally - Zoey
Twilight Sparkle - Gwen
Snaptrap - Scott
Sandy - Courtney
Iago - Alejandro
Spike - Cameron
Brad (Kick Buttowski) - Duncan
Blythe - Sierra
Sunset Shimmer - Heather
Trigger Happy - Sam
Etain - Jo
Swampy - Lightning
Eva (Hell on Wheels) - Lindsay