Don't Hug Me I'm Scared 6, there are several miscellaneous teachers shown. These include a horse standing on two legs (possibly the same one as in Yellow Guy's dream), a clapperboard, a flayed cube of meat, Duck Guy's head except with cubic facial features, the Plug, and even a dupilcate of Red Guy.
- The Duck Guy head is in fact the one from the suit used for his crude digital avatar seen for a split-second in Don't Hug Me I'm Scared 4.
- During a flash of them. Sketchbook is the only teacher not to be there