Trope-tan is the moe anthropomorphism of TV Tropes Wiki. Her design in-comic matches her canon description on the wiki in all but one aspect: her eyes in-comic are, like everyone else's eyes, both black. She speaks mostly in PmWiki markup and exhibits significant knowledge of tropes, as she knows everything that's on TV Tropes. As such, she's one of the most competent characters in the comic.
- Trope-tan first appeared in Fridge Logic, arriving in the comic through a plot hole; she was actually trying to enter Avatar And The Airbending Fellowship Of Vampire Slayers, rather than The Way Of The Metagamer. When the comic suffered from narrativium collapse, she escorted the main characters to safety by producing a stable plot hole.
- During The First Party, Trope-tan performed the Caramelldansen along with Annabelle Jenkins.
- Trope-tan then provided many of the snarky comments during Take That Us, before accidentally producing a trio of plot holes.