A still, sharp OPA leader challenges Holden to prove the coalition wants allies rather than expendable cannon fodder.
Carlos Walker is an OPA leader with a broad face and shoulders, an unusually still manner, and a reedy, musical voice with little audible Belter cant. Fred Johnson calls him to the Tycho summit as part of the anti-Free Navy coalition, but he arrives prepared to assess the plan rather than endorse its host.
Walker dismisses the summit's juvenile talk about Marco's romantic losses and names the larger truth: Marco has lost potential allies before the meeting even begins. He then asks how Holden will change the dynamic that keeps drawing the consolidated fleet into overreach and whether the OPA guests are being recruited as cannon fodder. Holden refuses premature detail but offers consultation and safe passage, leaving Walker's commitment unresolved.
A broad-shouldered, broad-faced Belter man with an uncanny stillness and a controlled, musical voice; he wears practical civilian meeting clothes and watches others without giving much away.
Walker is a hard strategic skeptic whose support requires proof that coalition unity will not simply spend Belter lives for inner-planet goals.