GLaDOS

GLaDOS battled Sherlock Holmes in an unofficial Epic Rap Battle, where she was portrayed by Nice Peter.
==Information on the Rapper==
GLaDOS is the main antagonist in the Portal series, a video game series made by Valve. Her name is short for "Genetic Lifeform and Disk Operating System". She has killed every scientist in the Aperture Science research facilities (with the exception of Doug Rattman). Her main enemy is Chell, the protagonist of the game. She is non-organic and entirely composed of mechanical parts. She supposedly "died" in Portal, but after she was heard singing "Still Alive", she came back in Portal 2, more vicious than ever. Later on in Portal 2, you must team up with her to replace the new head of the facility, a core named Wheatley. During this, she is hooked up to a potato, being nicknamed, "POTaTOS" and in the end of that game she sang "Want you Gone".
==Lyrics==
I don't have an ass, I'm a computer genie!
You're a flawful coke-head with a double billed beanie!
==Trivia==
*She is one of the only rappers that never appeared in an official rap battle (the others being Michael J. Fox and Chucky).
**However, her opponent, Sherlock Holmes, did eventually appear in an official ERB, and Marty McFly, who is played by Michael J. Fox, makes a cameo in Doc Brown vs Doctor Who.
***Both characters that eventually made it in were portrayed by different actors than who originally voiced them.
***They also both appeared in season 2 episodes.
*She has the shortest proper verse of any rapper, tied only with Sherlock Holmes in the same battle.
*If GLaDOS is counted, she is the second artificial intelligence to rap after HAL 9000.
*She is the second female played by Nice Peter, with the first being Lady Gaga and the third being Miley Stewart.