Oh boy, I live for this kind of discussion! First off, I think I need to define what is a “minor” role. From the main post I take away that they’re relevant for one or two sequences and that’s it. To put into perspective: The Warriors Three in Dark World/Ragnarok, not the First Thor. I’m not sure I’d place the Scarlet Scarab or Harrow as minor but they all definitely need a figure. I will also be excluding army builders. I will, however, consider secondary villains like Kurse, but not double antagonists like Justin Hammer and Whiplash. The secondary villain must be a clear and obvious subordinate.
So, for me:
- The Howling Commandos.
- Laufey (secondary to Loki)
- The Destroyer Armor (controlled by Loki)
- Selvig
- Heimdall
- Batroc
- Kurse
- The Warriors Three
- Luis, Kurt, and Dave (either complete the crew from Antman and the Wasp, or all 3 from the first Antman)
- Baron Strucker
- Karina (The Collector’s aid)
- Korath
- Roman Dey
- Denarian Sal
- Stakar, Martinex, and the rest of Yondu’s Ravager teammates
- Ayeesha
- The Shocker(s)
- Topaz
- Miek
- Wa Kabi
- The rest of the Star Fleet
- Hydroman
- Sunny Burch and his goons
- Abomination (as seen in Shang Chi)
- The Illuminati, particularly Cap Carter, Professor X and Black Bolt.
- Namora
- Hercules
- Electro
- Gargantos
- Midnight Angel Aneka
- Darcy
- Battlestar
- Kid Loki
- Alligator Loki
- Throg
- President Loki
- Swordsman
- The big guy from the tracksuit mafia
- The Jackals from Moon Knight
- Titania
- Leap Frog
- The wrecking crew
- Starfox
- Pip the troll
- MODOK
- Warpig
- The Octopus bear Hell spawn
- Howard the Duck
- Batch 89
- Beast
- OB
And plenty more new cameos. I tried not to include any characters that had a bigger role like Scarlet Scarab, G’iah, the flagsmashers, The Ancient One or Christine Palmer