Source: 15.ai, fifteen.ai, https://fifteen.ai/

Meet the Spy Team Fortress 2

Scout: Rainbow Dash
Soldier: Derpy Hooves
Pyro: Not Shown in video
Demoman: Not shown in video either
Heavy: SSBU Announcer
Engineer: Applejack
Medic: Fluttershy
Sniper: Twilight Sparkle
Spy: Rarity
Announcer: Glados