User blog comment:ZIMsonic/Fourth Ben 10 Series/@comment-3541906-20110515122519

hey, there are some aliens:


 * New Alien (which we saw in Basic Training)
 * Clockwork (which we saw in Ben 10, 000 Returns. Refer the episode's page)
 * Eatle (not seen)
 * ChamAlien (which we saw in Prisoner #775 is missing)
 * Velocity (still a rumour of being the name of New Alien above or a mysterious alien)
 * Overkill (  "" )
 * BlueZilla ( "" )
 * Pablo (     "" )