The Powerpuff Girls - Season 6 - Eps 18: Octi Gone
Professor Utonium is hosting a party for all the rich and famous people in Townsville, so Bubbles makes sure that she is the most beautiful of the girls by continually grooming herself. While doing this, she notices one of Octi's legs poking out from under the girls' bed, so she goes to pick him up to find that all that's there is one of Octi's legs! After waking up from the shock, she vows to exact revenge on the person who 'killed' Octi.
About The Powerpuff Girls

Title: The Powerpuff Girls
First Air Date: 1998-11-18
Last Air Date: 2005-03-25
Status: Ended
Rating: 7.5/10 (from 909 votes)
Language: EN
Seasons: 7
Total Episodes: 136
Network: Cartoon Network
Genres: Action & Adventure, Animation, Comedy, Kids, Family
Production Companies: Cartoon Network Studios, Hanna-Barbera Productions
Synopsis
The Powerpuff Girls is a animated television series about Blossom, Bubbles, and Buttercup, three kindergarten-aged girls with superpowers, as well as their "father", the brainy scientist Professor Utonium, who all live in the fictional city of Townsville, USA. The girls are frequently called upon by the town's childlike and naive mayor to help fight nearby criminals using their powers.
Cast

Cathy Cavadini
Blossom (voice)

Tara Strong
Bubbles (voice)

E. G. Daily
Buttercup (voice)

Tom Kenny
Mayor / Snake / Lil' Arturo / Narrator (voice)

Tom Kane
Professor Utonium / Him / Talking Dog (voice)

Roger L. Jackson
Mojo Jojo (voice)

Jennifer Martin
Ms. Sara Bellum (voice)

Jennifer Hale
Ms. Keane / Princess Morbucks / Sedusa (voice)

Jim Cummings
Fuzzy Lumpkins (voice)

Jeff Bennett
Ace / Grubber / Big Billy (voice)