The variants of the Mutant Enemy Logo

Description
The logo was introduced on Buffy the Vampire Slayer for Joss Whedon's last minute production company. The logo has been altered several times for special occasions. This video also includes Tara's finger puppet imitation of the logo. :)

The name "Mutant Enemy" is taken from the song "And You and I" by Prog rock band. Yes, of whom Whedon is a confessed fan. (On the special features of the Buffy DVDs, Whedon also says in an interview that he called his typewriter "mutant enemy.") The company's end-of-credits logo and mascot is an intentionally poorly animated vampire cartoon figure crossing the screen from right to left and saying, "Grrr. Argghh." It was drawn and voiced by Whedon himself. In certain episodes of Buffy the animation was changed.

The company produced Buffy the Vampire Slayer, Angel, Dollhouse, Firefly, Dr. Horrible's Sing-Along Blog, and The Cabin in the Woods.