From his introduction onwards, Horribus is depicted as possessing only middling intelligence but strong leadership skills - he is extremely self-confident, decisive, charismatic and fully capable of maintaining discipline among his followers. He relies on the advice of Psyk, who he obviously recognises as the brains of the dimension but sees as a geek. Horribus is impatient, touchy, prone to fits of fury and has little or no sense of humour. A softer side (played for laughs) is hinted at in references to a soft toy collection. Horribus' arrogance and sense of his own position are in marked contrast to his grovelling behaviour towards his own boss, the Demon King, to whom he appears to be very loyal.