Participants Episode(s) Result
Ace-Ops vs. Geist "Ace Operatives" Won
Team RWBY vs. Ace-Ops "With Friends Like These" Lost


Marrow is the youngest and newest addition to the Ace Operatives team. Prior to the start of the series, he graduated from Atlas Academy, joining the military as a Specialist.

Before becoming a Specialist, what drove Marrow to be a Huntsman in the past was that many people said Marrow couldn't ever be one.[1] However, beating those odds, Marrow was able to rise to the top of the ranks, becoming an Ace-Op. He is extremely appreciative and humbled by James Ironwood for being brought in as a part of the most elite group of Huntsmen in Atlas, being well aware of the social and racial tensions between Atlas and Faunus and how rare it is for his kind to be placed in such a role.[2]

Following the Fall of Beacon, Ironwood enlisted Marrow, as well as the rest of Ace-Ops, into his secret group with the goal of stopping Salem and her forces through the use of the Amity Communications Tower.


In MantleEdit

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Marrow and his team confiscate unauthorized weapons

Marrow and his team were called into Mantle because of reports of a stolen Atlesian airship entering its airspace and because of the unauthorized use of weapons by civilians. The culprits were Team RWBY, Team JNPR, Qrow Branwen and Oscar Pine, who defended the city from a pack of Sabyrs. Marrow and his team caught them by surprise and seized their weapons before leaving them in the custody of the authorities.

He is later seen retelling how he was kicked out of a place at least three times to his team before the Huntsmen-in-training arrived. Following the release of their quarries, Marrow and the rest of Ace-Ops apologize for the miscommunication, before the students are introduced to Atlas Academy by Penny Polendina.

Episodes Covering These Events

Geist HuntEdit

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In the mission to the Schnee Dust Company Mine #2, Marrow and Harriet Bree join Team RWBY in the mines. He complains about being signed up as a babysitter, which Harriet deflects by saying that's what she is to him. As Weiss Schnee and Blake Belladonna discuss the Schnee Dust Company, Marrow explains that society in Atlas is set up to put the Faunus in the bottom, and humans are willing participants by not helping. Marrow and the rest of the team encounter a Geist, who flees deeper into the mines, and a swarm of Centinels. He later defeats the Geist in the caves along with the rest of Ace-Ops.

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Marrow was present after teams RWBY and JNPR were officially received their Huntsmen licenses, along with Elm Ederne and Vine Zeki, helping the new Huntsmen and Huntresses break into their professional field. Following this, Marrow joined the Ace-Ops and Huntsmen in preparations, where he formed a bond with Jaune Arc. He also aided the teams' training, and went on another mission to the SDC with Blake Belladonna and Yang Xiao Long to help clear the Grimm from the area.

Episodes Covering These Events

Patrol at Robyn Hill's Election PartyEdit

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Marrow during his patrol at the Election Party in Mantle

Following Jacques Schnee's announcement of having "been forced" to close down non-essential Schnee Dust Company facilities, Marrow and Penny were tasked with making sure the elections for Mantle city council went smoothly, as bodyguards for Robyn Hill. The election party Robyn chose to attend was crashed by Tyrian Callows, who massacred partygoers and framed Penny for murders, putting the blame on Atlas.

The Happy Huntresses and survivors attacked Marrow, Ruby, Lie Ren, Nora Valkyrie, and Penny, though Marrow froze them temporarily with his Semblance, his attempts to help being ignored. Marrow and the group left, swearing the attacks weren't being staged by Atlas. Soon after, Creatures of Grimm arrived to attack the city, where Marrow lamented they'd have a long night.

Episodes Covering These Events

A Banquet at the Schnee ManorEdit

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Marrow is quick to recognize systemic societal issues.

Marrow later attended the dinner at the Schnee Manor, as one of Ironwood's guests. After realizing all other Faunus at the party were waiters rather than guests, Marrow left to go outside with Qrow in frustration, on standby in case Ironwood needed further evidence in defending his seat in the council.

As Jacques and the council continue raising issues toward Ironwood, Weiss enters, saying Jacques should be tried instead. She shows the group footage of his interaction with Arthur Watts, and the council turns on him for aiding the man they then believe to be behind much of what Ironwood had been blamed for. As those assembled in Schnee Manor enumerate Jacques' crimes, including the murders at Robyn's rally, they receive messages informing them of the crisis in Mantle; with the heating in the city disabled, riots and Grimm are approaching the city.

Episodes Covering These Events

Battle of MantleEdit

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Marrow, along with the rest of the Ace Ops and Ruby's Group (bar Oscar) deploy to Mantle in an airship. The flight is interrupted by a pair of Teryxes, who destroy their Manta and forces the group to eject into the city below. In Mantle, Marrow teams up with Weiss, where the two of them defend citizens from the Creatures of Grimm, joining forces with the Happy Huntresses.

The group is slowly overwhelmed and tired by the hoardes of enemies, causing the people of Mantle to demand to be evacuated to the city of Atlas. broadcast is sent out to all of Mantle and Atlas by Ironwood and Robyn which Ironwood reveals the existence of Salem and links the recent murders in Mantle to her minions Tyrian Callows and Arthur, while Robyn uses her Semblance on him to prove it to all be true. The two encourage everyone to stand together due to Salem's goal being to divide them. Ironwood reveals his plans involving the Amity Communications Tower, claiming it is ready for launch and tells the civilians they will be evacuated to Atlas.

Episodes Covering These Events

Martial LawEdit

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Marrow and Weiss continue to help until they are suddenly called back to Atlas Academy under direct orders from Ironwood. Team RWBY and the Ace Ops go to Ironwood's office, where he reveals that one of Salem's subordinates left a black queen chess piece on his desk. He begins panicking, questioning if everything that he and the others did was part of Salem's plan. Ironwood questions whether or not Team RWBY really is on his side and asks them how Robyn knew about the Amity Tower project. Yang confesses that she and Blake told her, leading to an argument. The argument becomes more and more heated, and suddenly, a Seer bursts out of Watts' bag, dies, and breaks open to release a smokey apparition of Salem.

Salem proclaims that Watts and Tyrian's mission was not to secure victory, but rather to set the stage for Salem herself. She then attempts to convince Ironwood to surrender but is soon distracted by Ruby delivering a speech about how they learned the truth about her from the Relic of Knowledge and will still stop her even without killing her. Salem tells Ruby that Summer Rose once said those same words but was proven wrong, causing Ruby to break down crying with her silver eyes flickering and flaring.

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The Salem apparition disappears, and Marrow begins to panic, especially upon realizing that the proximity alarms along the coast near Atlas are inactive. Blake asks about the readiness to launch the Amity Tower, but Yang realizes that Ironwood just said that to lure out Watts. Ironwood then explains that he intends to raise the City of Atlas into the atmosphere instead of Amity Tower. There, the city, the two Relics and the Winter Maiden will be safe from Salem. Team RWBY protests that this plan would mean leaving people in Mantle to die due to the evacuation not being complete, but Ironwood refuses to reconsider.

Suddenly, Jaune opens a group call with Ruby, Qrow and Winter. Taking the opportunity, Ruby uses her Semblance to get past Ironwood and warn the others about his plan. Ironwood locks communications, declares that Team RWBY are under arrest, and leaves while the Ace-Ops get ready to detain them.

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As RWBY and the Ace Ops prepare to fight, Marrow hesistantly asks Harriet if their plan really is to fight. Harriet insists they'll let RWBY decide, and the Ruby initiates a battle. Marrow faces off against Weiss in Ironwood's office, trying to talk Weiss into surrendering peacefully despite knowing she's used to getting what she wants. Weiss ignores his orders, and contines to fight. As Ruby and Harriet's fight returns to the office, Harriet yells at Marrow, telling him to stop holding back against RWBY. Marrow insists that he's only trying to arrest them, and that she was taking things too far, seeming as though she wants to kill RWBY. Harriet does not deny this, and instead says it's necessary.

Due to his hesitance and unwillingness to fight, Weiss defeats Marrow, knocking him unconscious. She and the rest of RWBY then tie Marrow and the Ace Ops to their Gravity Bolas, and leave them in Ironwood's office.

Episodes Covering These Events



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