Nopants

Nopants is a character who first appeared in Chapter 9 Part 17.

Chapter 9 Part 27
Nopants spoke in Umherl and was killed due to BFrit and Foury kissing. His corpse was sacrificed to a volcano to summon Magmega. The Dancing Polish Cow laughed and sang in Umherl, as it was now the only Umherl speaker.

Windows 1337 3
He and Yespants spoke Umherl. Later, when it was revealed that Faceapp.com took Zacker Cracker's and Cleverbot's faces, he danced.

An Infinite NES Crisis
Nopants teamed up with You, Zennanthians, Yespants, Henry Stickmin, Henta, Dictator Two and numbered Magmonitors.

Filler Gonna Nite You Up
In the dream within the dream, Team NES saw Nopants speaking Umherl with Foury clones, along with Zeurel destroying stuff, people being called Zuel and Ron Sheshley putting random stuff on the interwebs.

AI Dungeon Adventure
Henryton encountered Nopants.

Griffin Revenge
Nopants emerged from TFS HQ, having heard Admiral Poncho mentioning StarBob NoPants. He asked if anyone said his name.

NES Eddventure
After another clock generated, Nopants, Ho-Sis and a fork were sacrificed to the volcano.

Chapter 11 Part 13
He appeared due to the Dancing Polish Cow saying 'you have completed nopants' in Umherl.