Structural Maintenance Foreman / Craftsman — first generation, age 61
Slow, thoughtful, and physically formidable, Marcus's hands are perpetually stained with coal-syrup residue and grease. He holds the physical memory of how the complex machinery was initially assembled.
He was instrumental in the initial regolith shaping and sealing of the deeper caverns near The Cradle Engine. He respects things built to last and views the 'next phase' as dangerously ephemeral.
Marcus keeps a physical, non-digital logbook detailing the structural stress fractures the seawall is experiencing, which contradicts the official reports.