Elena Validus is a teenage ex-Plumber who bonded with aliens called Nanochips in an attempt to win over Ben Tennyson.
- Elena first appeared in the non-fanon Ben 10: Alien Queen where she tried to help Ben, Gwen, and Kevin stop the nanochips.
Ben 10: Alien Universe
- Ben 10: Alien Queen (non-fanon)
Back in Action: Alien Universe
- No Strings Attached (first fanon appearance/re-appearance; Endgame only)
- The Sea's the Limit (Endgame only)
- Hit and Miss (Endgame only)
- Dial Z for Zombified (Endgame only)
- Missing Link
- New Girl
- Revelation (Endgame only)
- Why Am I Here?
- Love Stuck (Endgame only)
- Ben 10: Alien Universe Unleashed
- The Armaggedroid
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