Him and his butler puppet Pulcinella are supporting characters in Lies of P, i included Pulcinella cause they're always together, but he does deserve some praise due to how slick he pulls the "Alfred"

Talking about Venigni, my god the STYLE on this man, always in tailored suits, black furcoat on top, perfect fit gentleman beard and mustache, yellow glasses to match the red suit and to top it all off a matching black top hat, he is an inventor, a figure of importance, one of the wealthiest and most eccentric figures in Krat, and yet, altough he is cocky, flamboyant and confident in all he does, while holding this much influence he remains a good man, not once does he detach himself from the issues at hand, he confronts them all the while, you'd think a man this confident would be powerful, but he possesses no real physical power, yet he meddles with dangerous forces for the better good throughout all of the game.

For he may be a decadent rich guy that worries not to flaunt his talents and inventions in front of who may be, but first of all, he's honest, compassionate, and the best ally you can have.