Lettuce

Lettuce is a Marvin Mark parody from petscop

Appearance
Video 6 - He first appears at the beginning of the video in a shadow form, he seems to be reading the sign in Bird’s room, and then he comes up at the camera. In the next scene of the episode, Lettuce can be seen at the end of the tunnel on the road before disappearing.

Video 7 - OH NO... uh oh- AAAAAAAAAAAAAAAAAAAA

Video 16 - He appears briefly inside The Hamburger after Pickle Chin exits from the kitchen for the second time.

Now this is his real appearance.

its looking kinda weird because he looks like he has eyes and nose and a mouth

thats all i can say.