Appearing in "Under the Surface"
Featured Characters:
- Thunderbolts
Atlas (Erik Josten) 
- Charcoal (Charlie Burlingame)
- Hawkeye (Clint Barton) (Appears in flashback and main story)
- MACH-II (Abe Jenkins)
- Meteorite (Karla Sofen) (Appears in flashback and main story)
- Ogre (Brian Dunlap) (Cameo)
- Songbird (Melissa Gold)
Supporting Characters:
- Bailiff of Madness
- Daimon Hellstrom
- Mockingbird (Bobbie Morse) (Appears in flashback and main story) (Appears in shadow only)
- Pluto
Adversaries:
Other Characters:
- Ajes'ha (Cameo)
- Angar the Screamer (Dave Angar) (Vision)
- Beetle (Jared Goulding) (In an illusion or vision) [1]
- Anton Devine (Only in flashback)
- Carl Josten (Vision)
- Enchantress (Amora)
- Gargoyle (Isaac Christians)
- Hellcat (Patsy Walker) (Resurrected)
- Jaine Cutter (Cameo)
- Jolt (Hallie) (Vision)
- Phantom Rider (Lincoln Slade) (Only in flashback)
- Techno
- Wanda Maximoff (Appears in flashback and main story)
- Wasp (Janet Van Dyne) (Only in flashback)
- Masters of Evil (Mentioned)
- Crimson Cowl (Dallas Riordan) (Only in flashback)
- Fantastic Four (Mentioned)
- Mister Fantastic (Reed Richards) (Mentioned)
- West Coast Avengers (Mentioned)
- Satannish (Mentioned)
- Grim Reaper (Eric Williams) (Mentioned)
- Hercules (Mentioned)
- Maria Stark Foundation (Mentioned)
Locations:
- Nether-Realms
- Hell
- Manhattan
- Ash Hotel
- Massachusetts
- Fire Lake
- Kree-Lar (Vision)
- Burton Canyon (Vision)
- Colorado (Only in flashback)
- Mount Charteris (Only in flashback)
Items:
- Hawkeye's Bow & Trick Arrows
- Mobile Armored Cyber-Harness
- Beetle Armor MK II (Vision)
- Mockingbird's Battle Staves (Appears in flashback and main story)
Vehicles:
Synopsis for "Under the Surface"
- Synopsis not yet written
Appearing in "Physician, heal thyself?"
Featured Characters:
Supporting Characters:
- Moonstone (Lloyd Bloch) (Only in flashback)
- Ajes'ha (Only in flashback)
- Hawkeye (Clint Barton) (Only in flashback)
- Deanna Stockbridge (Only in flashback)
Synopsis for "Physician, heal thyself?"
- Synopsis not yet written