Original challenge here

Progress: 17/52

1. Robert Downey Jr. – Tony Stark / Iron Man
2. Chris Evans – Steve Rogers / Captain America
3. Chris Hemsworth – Thor
4. Scarlett Johansson – Natasha Romanoff / Black Widow
5. Mark Ruffalo – Bruce Banner / Hulk
6. Samuel L. Jackson – Nick Fury
7. Tom Holland – Peter Parker / Spider-Man
8. Benedict Cumberbatch – Dr. Stephen Strange
9. Chadwick Boseman – T’Challa / Black Panther
10. Elizabeth Olsen – Wanda Maximoff / Scarlet Witch
11. Tom Hiddleston – Loki
12. Brie Larson – Carol Danvers / Captain Marvel
13. Paul Rudd – Scott Lang / Ant-Man
14. Zoe Saldana – Gamora
15. Simu Liu – Xu Shang-Chi
16. Florence Pugh – Yelena Belova / Black Widow
17. Pom Klementieff – Mantis
18. Idris Elba – Heimdall
19. Willem Dafoe – Norman Osborn / Green Goblin
20. Cate Blanchett – Hela
21. Tony Leung Chiu-wai – Xu Wenwu / The Mandarin
22. Tilda Swinton – The Ancient One
23. Jeff Bridges – Obadiah Stane / Iron Monger
24. Stellan Skarsgård – Erik Selvig
25. Tobey Maguire – Peter Parker / Spider-Man (variant)
26. Kurt Russell – Ego the Living Planet
27. Jon Favreau – Happy Hogan
28. Julia Garner – Shalla-Bal / Silver Surfer
29. Annette Bening – Dr. Wendy Lawson / Supreme Intelligence
30. Benicio del Toro – The Collector
31. Chiwetel Ejiofor – Karl Mordo
32. Salma Hayek Pinault – Ajak
33. Brian Tyree Henry – Phastos
34. Hailee Steinfeld – Kate Bishop
35. Vanessa Kirby – Sue Storm / Invisible Woman
36. Terrence Howard – James “Rhodey” Rhodes
37. Martin Freeman – Everett K. Ross
38. Djimon Hounsou – Korath the Pursuer
39. Daniel Kaluuya – W’Kabi
40. Ben Kingsley – Trevor Slattery
41. Forest Whitaker– Zuri
42. Michelle Yeoh – Aleta Ogord & Ying Nan
43. Rene Russo – Frigga
44. Kathryn Newton – Cassie Lang
45. Randall Park – Jimmy Woo
46. Jeff Goldblum – Grandmaster
47. Jennifer Connelly – Karen / Suit Lady (voice)
48. Clancy Brown – Surtur (voice)
49. Judy Greer – Maggie Lang & War Pig (voice)
50. Michael Peña – Luis
51. Liv Tyler – Betty Ross
52. Aaron Taylor-Johnson – Pietro Maximoff / Quicksilver