Characters that made their debut in the Original Series.
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All items (209)
A
B
- Baron Highway
- Ben 10,000 (Original)
- Ben Tennyson (Classic)
- Ben Tennyson (Goodbye and Good Riddance)
- Ben Tennyson (Gwen 10)
- Ben Tennyson (RAT Timeline)
- Ben's Dog
- Ben's Teacher (And Then There Were 10)
- Ben's Teacher (Destroy All Aliens)
- Ben's Teacher (Goodbye and Good Riddance)
- Betty Jean Tennyson
- Billy (Original)
- Bird Villains
- Bob
- Bowling Ball Bandit
- Brad
C
G
- Galactic Enforcers
- Galactic Enforcers (Original Future)
- Gaterboy
- Gilbert
- Gluto
- Gordon Tennyson
- Great One
- Gumdrop Wizard
- Gwen Tennyson (Classic)
- Gwen Tennyson (Goodbye and Good Riddance)
- Gwen Tennyson (Gwen 10)
- Gwen Tennyson (RAT Timeline)
- Gwendolyn Tennyson (Ben's Daughter)
- Gwendolyn Tennyson (Original)
J
K
L
M
- Mandy
- Mann Family's Bodyguard
- Mr. Mann
- Mrs. Mann
- Marty
- Max Tennyson (Classic)
- Max Tennyson (Goodbye and Good Riddance)
- Max Tennyson (Gwen 10)
- Max Tennyson (Original Future)
- Max Tennyson (RAT Timeline)
- Missy
- Mot Snikrep
- Mr. Beck
- Mrs. Fang
- Mummy
- Mutant Bat (Classic)
- Mutant Frog
- Mutant Hamster
- Mutant Hornet
- Mutant Lepidopterran-Splixson Hybrid
- Mutant Octopus
- Mutant Parrot
- Mutant Prairie Dog
- Mutant Seagull (Original Series)
- Myaxx
- Mycelium
P
S
- Samurai
- Sandra Tennyson
- Sandra Tennyson (Goodbye and Good Riddance)
- Sandra Tennyson (RAT Timeline)
- Scooter
- The Seer
- Shag Carpeting
- Captain Shaw
- Shelby
- Dr. Shueman
- SixSix (Classic)
- Slix Vigma
- Slix Vigma's Bodyguards
- Sploot
- Lieutenant Steel
- Steve Cummings
- Sublimino
- Sumo Slammer Collecting Boy
- Synaptak
- Synaptak (Original Future)
T