Loki: he opening scene of the movie, Loki hands over the Tesseract to Thanos (Josh Brolin) to save Thor’s (Chris Hemsworth) life.
Heimdall: Thanos and his children murder Thor’s best friend Heimdall (Idris Elba) when they invade Thor’s ship. But before he dies, the Asgardian opens up a gateway to Earth for the Hulk to escape.
Gamora: Thanos travels to a planet with his adopted daughter Gamora (Zoe Saldana). There, they encounter Red Skull, the baddie from Captain America: The First Avenger who has been cursed to guard the Soul Stone.
Vision: Scarlet Witch (Elizabeth Olsen) destroys the Infinity Stone inside Vision’s (Paul Bettany) head to keep it from Thanos.