It was our fault. Because it shouldn't have mattered. We should've been ready for anything. You always have to consider the worst-case scenario. The unexpected. Because when you don't...this is what can happen. Go ahead. Read the names and think about each one...what it means. What was lost. 
Appearing in "Redemption Song"
Featured Characters:
- Avengers Academy
- Students
- Staff
- Justice (Vance Astrovik)
- Speedball (Robbie Baldwin) (Main story and flashback)
- Giant-Man (Hank Pym)
Supporting Characters:
- Leech
- Protector (Noh-Varr)
- Dr. Strange (Stephen Strange)
- Mr. Takeda (Hazmat's father)
- Mrs. Takeda (Hazmat's mother)
Antagonists:
- Cobalt Men (First appearance)
Other Characters:
- Tigra (Greer Nelson) (Mentioned)
- God (Yahweh) (Invoked)
- Avengers (Mentioned)
- Sentry (Robert Reynolds) (Mentioned)
- Reed Richards (Mentioned)
- Future Foundation (Mentioned)
- Saint Peter (Invoked)
- New Warriors (Only in flashback)
- Namorita (Only in flashback)
- Microbe (Zach Smith Jr.) (Only in flashback)
- Night Trasher (Dwayne Taylor) (Only in flashback)
- Brad (Only in flashback)
- Nitro (Robert Hunter) (Only in flashback)
- Speedfreek (Joss Shappe) (Only in flashback)
- Cobalt Man (Ralph Roberts) (Only in flashback)
- Coldheart (Kateri Deseronto) (Only in flashback)
- Norman Osborn (Mentioned)
- Wasp (Janet Van Dyne) (Referenced)
- "Wasp (Janet van Dyne)"
Races and Species:
- Humans
- Mutants
- Kree-Cockroach Hybrids
- Fomalhauti (As a hologram)
- Elephants (Mentioned)
- Dogs
- Atlantean-Human Hybrids
- Unidentified alien species (Mentioned)
- Zombies (Mentioned)
- Cyborgs (Mentioned)
- Skrulls (Referenced)
Locations:
- Infinite Avengers Mansion
- Veil's Quarters
- Hazmat's Headquarters
- Superhuman Ethics Class
- Anger Management
- Extraterrestrial Culture
- Applied Chemistry
- Rudiments of Magic
- Hank Pym's lab
- Earth
- United States of America
- California
- San Francisco
- Golden Gate Bridge
- Golden Gate Park
- Hazmat's home
- San Francisco
- Connecticut (Only in flashback)
- Stamford (Main story and flashback)
- Stamford Memorial (First appearance)
- Stamford (Main story and flashback)
- New York City, New York (Mentioned)
- Washington, D.C. (Mentioned)
- California
- United States of America
- Heaven (Mentioned)
- Hell (Invoked)
Items:
- Giant-Man's Suit
- Mutant Growth Hormone (Only in flashback)
- Fossilized Amulet
- Finesse's Battle Staves
Synopsis for "Redemption Song"
- Synopsis not yet written