Embarrassment Ninjas
The embarrassment ninjas don't talk.
2 silent ninjas employed by Drakken in Blush. Drakken tries to embarrass Kim out of existence and brings in the deadly pair to speed up the process while she's on a date with Josh Mankey. They come close to succeeding, with unintentional help from Jim and Tim Possible, but Kim is saved by Ron at the last minute.