Praxis
Piloted the Mega Drill robot.
Ringbah
Piloted Evil Giant Robot #1.
Rhinix
T-Top
Hydrax
Bugglesworth
Piloted Evil Giant Robot #2.
Dru/Giganis
Sinuku
Piloted Evil Giant Robot #3
"Debugger"
General Benaag
Had a blue head pilot Evil Giant Robot #4.
Drakel
Had a Blue Head pilot Evil Giant Robot #5.
General Valko
Had a Blue Head pilot Evil Giant Robot #6. Also attemted to control Goradon.
Tomars
Wootox
Piloted Evil Giant Robot #7. Also attempted to take control of the Delta Command Megazord.
Katana
Was not really evil. Believed S.P.D. to be attacking Kyoto, Japan. Had a Blue Head, supplied by Broodwing, pilot Robot God Morato.
"Invador"
Piloted Evil Giant Robot #8.
Changtor
Green Eyes
Piloted Evil Gint Robot # 9.
Shorty
Devastation
Most wanted criminal in the galaxy. Piloted the Robot of Destruction.
Mysticon and Al
Mysticon piloted Evil Giant Robot #10.
Slate
Piloted the cloned Robot of Destruction.
Mirloc
Had a Blue Head pilot Evil Giant Robot #11.
Stench and Thresher
Thresher piloted Evil Giant Robot #12.
El Scorpio
Gineka
Piloted Evil Giant Robot #15.
Delapoo
Piloted Evil Giant Robot #17.
Chiaggo
Piloted Evil Giant Robot # 16.
"Blobgoblin"
Piloted Evil Giant Robot #13.
One Eye
Silverhead
Piloted Evil Giant Robot #14.