I Swear to Kill

I Swear to Kill is an American action thriller comic book series published by Image Comics. The comic combines spy and supernatural fiction in an action-packed adventure that follows the head of a government agency who sells her soul to a demon in order to gain him as an ally.

Main

 * Juliet Ironrose - the main protagonist of the series who is the head of a government agency and who has killed so many people she was nicknamed "Lady Death." Sadly, she lost her thumb on her dominant hand and is thus crippled in fights.
 * Grape Juice - an odd-looking giant purple demon with a permanent delighted grin who Juliet sold her soul to in order to gain him as an ally due to her disability. Grape speaks without opening his mouth and is the current strongest thing on the planet.
 * Gabe Goldheart - a member of the agency who is a former preacher that has very strong ties to his religion. Due to this, he distains Grape and everything he stands for. He is known for his golden pistols and for quoting the bible in battle.

Supporting

 * Timothy Cole - Juliet's personal assistant who is a rather clumsy and shy man that stutters while speaking. Ironically, he is trained in karate and mixes it with gun fighting.
 * Kate Williams - the secretary of the agency who prefers to keep to herself and doesn't speak very often. Due to this, most are surprised to find out she is an explosions expert.
 * Donald Bonnin - a French chef who is the self-proclaimed greatest cook in the world. He once worked as an assassin who poisoned his target's food.
 * Professor Myers - a genius and extremely morally questionable doctor who has been on trial multiple times in multiple states for many different crimes.
 * "The Big Guy Upstairs" - while never given an actual name, the big guy upstairs is the creator of the universe. They have no actual form, instead taking the form of whatever someone pictures them to look like.
 * "The Big Guy Upstairs" - while never given an actual name, the big guy upstairs is the creator of the universe. They have no actual form, instead taking the form of whatever someone pictures them to look like.

Antagonists

 * Cleo Ezarik - one of the main antagonists of the comic who is a fallen angel who was cast out of heaven for constantly committing several of the seven deadly sins, seemingly for fun.
 * Umbra - one of the main antagonists of the comic who is Grape Juice's son and one of the seven Dukes of Hell. He despises his father due to constantly living in his shadow.
 * Vlad the Impaler - the first vampire ever created who uses a spear as his main weapon. He is known for his habit of impaling his enemies as his preferred method of murder.