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Dr. Blowhole is the evillest dolphin in the 2nd Dimension. He is an enemy in the House of Animals franchise. He wants revenge on the humans in the real world. He failed in his quest. He teamed up with Megatron in order to rule both worlds. He was even in one of Zok's parties. He also has Negaduck work for him an Queen Beryl (Negaduck's mother), as they look after Negaduck.