Blue Genie is a One-Time villain who appears in the episode, "Green Wing". He has the power to make people dance until they die. Green Wing had trapped him inside a record decades ago, until Buttercup accidentally freed him. He was voiced by James Marsden.
In "Green Wing", an elderly old woman named Edith bored Buttercup to death with a story about the times, when she was a young superhero named Green Wing, Buttercup wanted to put her to sleep, so she took out a record, by a musical star, known as "Blue Genie". Edith warned her not to play the record, because that record was where she trapped one of her previous enemies, The Blue Genie. Buttercup ignored her and played the record anyway, freeing Blue Genie into the retirement home.
Blue Genie got up on stage and said that he was going to start a cosmic dance party, which as Green Wing said, would tear a hole in the space dance continuum. Blue Genie sang the song "Dance 'Til Your Doom" and zapped a bunch of senior citizens with his laser fingers, causing them to dance against their wills. He also zapped Blossom and Bubbles, leaving only Buttercup and Edith free to save the day. It was hard for Buttercup to land a punch on him, because Blue Genie had elastic stretching powers and he was a master of dodging punches.
Green Wing splashed, Blue Genie with water, getting him and his fancy leather suit all wet. Buttercup used her laser eyes on him and the heat dried up his clothes, and shrunk them, crushing him inside. Blue Genie was restrained by his shrunken clothes and immobilized. Green Wing opened the record player and sucked Blue Genie back into it, trapping him once again. Green Wing took out the record player and accidentally dropped it. The record shattered on the ground and a puff of smoke came out of it, accompanied by the sound of The Blue Genie's tortured scream, that suddenly went silent, implying that he probably died from that.
- Blue Genie is based on singer Elvis Presley.
- His name is a pun on “blue jeans”, since he wears a denim jumpsuit.
- His weakness is water, since it causes his clothes to shrink.
- He may not actually be dead, since he was just trapped inside a magical record.
- He is similar to the late Cesar Romero version of the Joker from the 1966 live-action Batman television series.