Due to his powerful hypnotic ability and status Manfred is able to bully just about anyone and get away with it. He's easily able to read Charlie's mind and disconcert him in their first meeting. However just a year later when he tries extracting information again Charlie not only manages to resist him, but steal one of Manfred's memeories. Not only that, but later its revealed Charlie's pretty much broken Manfred's hypnosis powers for good.
Paton Yewbeam in the first book of the series, when he blows up the lights at the school to force Bloor to hand over Emma's birth certificate, and walks away laughing after he does.
Also when Paton BLOWS UP a sewing machine, kills a 100 year old shapeshifter, and burns down his evil sister's house, all at one shot.