Who Were the Original Aliens in Ben 10?

Top 10 Favourite Ben 10 Aliens

EVERY CLASSIC ALIENS TRANSFORMATIONS IN OMNIVERSE

Ben 10 (Classic) - TV on Google Play

Ben 10 Original Series All Aliens!(2006)

Ben 10 Aliens by kjmarch, Ben 10

All 63 Ben's Aliens : r/Ben10

Alien X, Ben 10 Wiki

Ben 10 Aliens: Original Series by UltraMaker on DeviantArt

Which alien from the original series is your least favorite? : r/Ben10

Every Ben transformation from the original series (have I missed any) : r/ Ben10

Why doesn't Ben use his original 10 aliens in Omniverse at all? - Quora

All 71 Canon Ben 10 Aliens (however Ben Prime only used 63 Aliens of all these in Classic Continuity). : r/Ben10

Ben 10 Original Series All Aliens!(2006)

Turning aliens humanoid: Original Series : r/Ben10