- "I don't need some out-of-town asshole telling me how to do my job. Next time I speak to him, it's gonna be to tell him we got the job done and we need to get paid."
- ―Marlena Olin
Serving in the Army
Living in Detroit, Olin served in the United States Army until she became a private security contractor and the leader of her own mercenary group. She and other mercenaries were hired by John Pilgrim to perform fieldwork for him.
Hunting Amy Bendix
- "Dumbass. You're so far over your head, you can't even see the light."
- ―Marlena Olin to Frank Castle
Informed by John Pilgrim of the target's location, Olin led the crew to Lola's Roadhouse to apprehend Amy Bendix. Bendix recognized them and tried to escape. Leaving Eddie outside the bathroom, Olin and another mercenary caught her in the women's restroom, she tried to take her away but was confronted by Frank Castle, after a vicious brawl Olin and her fellow mercenaries got defeated and knocked out.
Later, she found Bendix's backpack outside the bar and reported back to Pilgrim, reporting that she did not expect a man to rescue Bendix. Tech then found them footage of Castle fighting against mercenaries and Olin admitted his skills.
- "You ready to talk?"
"Kiss my ass."
- ―Frank Castle and Marlena Olin
Olin and with another team of mercenaries managed to track Frank Castle and Amy Bendix in the Tides Motel in Larkville. They attempted to surprise the two but got lured in an ambush by Castle, who killed her crew. Olin managed to catch Bendix but got knocked out by Castle. As Castle wanted to take her alive, for she fought back and engaged in a brief shootout where she got shot in her leg.
Arrest and Death
As Frank Castle was questioning her, the Larkville Police Department showed up and arrested all of them. Olin got locked up with Castle and Bruce Ogden and identified through her prints by the cops. In the cell, she had a conversation with Castle in which she expressed disbelief about how he had gotten involved with Amy Bendix. When John Pilgrim and her crew besieged the police station they were able to free her.
Olin told Pilgrim that she wanted to kill Castle herself, and after that, she would disappear using a fake identity. Explaining her plan of attack Pilgrim gained her trust by handing her his gun while asking her to go over the plan again. As soon as she turned her back to him he trapped her in a rear-naked choke and strangled her. She tried to shoot him with the gun but found it was empty. Unable to escape his hold she was strangled to death.
- Expert Combatant: Olin showed herself to be a highly skilled combatant during her fight against Frank Castle in the restroom. Olin was able to fluidly use a knife and keep up with him before getting disarmed and knocked out.
- Expert Marksman: As a skilled military operator, Olin showed to be skilled with a variety of firearms during firefights.
- Handgun: Olin was able to equip a handgun during her attack on the motel.
- Knife: In the public restroom, Olin used a knife while fighting Frank Castle.
- Amy Bendix - Target
- Frank Castle/Punisher - Attempted Killer and Former Cellmate
- Larkville Police Department
- Bruce Ogden - Former Cellmate
- John Pilgrim - Former Employer and Killer