|“||Oh great! So you're a loser all by yourself.||”|
— Jana to Piper in Scream Machine
Jana Tetrazzini is a girl whom Piper has a complete dislike for, and is jealous of her high number of followers and popularity.
Jana Tetrazzini was first mentioned in Substitute Teacher. Piper admits her jealousy towards Jana and is furious about it.
She finally makes her debut in Season 3's Scream Machine. She's part of the Gizmo competition along with Piper and has a grander volcano than Piper's tiny one (only because her dad made it for her). She then insults both Piper and Jake and they both attempt to attack her while the other holds them back. While Captain Man and Kid Danger are trying to catch a "criminal" Piper turns on her volcano, soaking Jana in red paint.