This page lists Common-tier units in Ultimate Tower Defense.
- Alfred
- Ant-Man
- Aunt May
- Batgirl
- Batman
- Black Panther
- Black Widow
- Bonefish
- Captain America
- Catwoman
- Christmas Flash
- Christmas Superman
- Classic Batman
- Cyborg (Common)
- Dare Devil
- Doc Oc
- Flash
- Green Arrow
- Green Lantern
- Hawkeye
- Iron Fist
- Iron Man
- Luke Cage
- Mizuki
- Nightwing
- Punisher
- Robin
- Sabretooth
- Sailor Sun
- Spike
- Star Mars
- Suit
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- Taskmaster
- War Machine
- Webby
- Wolverine
- Wonder Woman
- World's Strongest Man
- Young Thor