GLaDOS is the passive-aggressive artificial intelligence antagonist of Valve's Portal series, debuting in Portal in 2007 and returning in Portal 2 in 2011. Her distinctive synthesized voice, performed by Ellen McLain, became one of gaming's most quoted and memed performances. Online, creators frequently remix her lines with glitch, corruption and 'hacked' effects to suggest a system breach or AI breakdown. These edits circulate as short soundboard clips, keeping the character relevant in gaming memes, AI takeover jokes and Portal nostalgia edits years after release.