TTT NPC Spawner

Is there a TTT NPC Spawn hack? I've seen some people spawn manhacks and whatnot, but I cant find any
(disregard my username c:. well i do want them too <3)

Probably the owner of the server who spawned them.

I was the Co-Owner along with the owner, the guy was using hacks to spawn them.
(how would you even spawn that in TTT)