Lord Sovereign
The resident Britbong
Aside from being a semi-stereotypical slave owning southern gentleman of the 1850s, I don't see how Calvin instigated the situation which eventually resulted in him and his family being murdered. He does react rather violently to realising he's been deceived, which is evidence that he's not an overly pleasant man, but I doubt any of us would respond well to our hospitality being abused so badly. All he did was buy a slave that ended up being far more trouble than she was worth, and he'd probably have been glad to get rid of her if he was approached honestly on the matter.