Cantors are large, multi-legged creatures found on Planet Fractis that were encountered by Captain Starshield multiple times. Cantors spend most of their lifetimes underground, evidenced by their lack of eyes. Because of this, one can assume they rely on a heightened level of hearing to seek out possible prey. Captain Starshield later mentioned that Kragmites are commonly found with a Cantor, although the reason for this relationship was never fully explained, although it is possible they use them as scouts to locate prey on the ground. During Starshield's battle with one of them, it was shown they are impenetrable to conventional laser gun fire. The Cantor was later crushed by a falling boulder created by the captain.