This is probably the longest cast that I have ever worked with. I know all of the characters mentioned in the cast below didn't show up, but I put them there anyway for anyone who was curious about the rest of my casting choices.

Also, I love how Inifity War and Endgame are coming out on the same day just two years apart. Cool little detail.

Cast:
Iron Man- Applejack
Spiderman- Rainbow Dash
Doctor Strange- Discord 
Captain America- Spitfire
Star-Lord- Trixie Lulamoon
Hulk- Spike
Black Panther- Rarity
Black Widow- Princess Twilight Sparkle
Gamora- Starlight Glimmer
Thanos- Tirek
Ant-Man- Shining Armor
War-Machine- Soarin
Hawkeye- Sunset Shimmer
Thor- Pinkie Pie