Captain of the M. V. Blue Shimmer
Navarro once served in the US Navy as a senior noncom, sailing in everything from a nuclear-powered cruiser to fast patrol boats on anti-piracy patrols in the Caribbean. If it floats he can sail it, fix it and if need be fight it. After leaving the Navy he entered into a loan deal with some members of the Filipino mafia to by the Blue Shimmer and its deep-sea submersible from the US Oceanographic Institute and went into business for himself.
Navarro seems like a relaxed and easy-going guy, except for the frequent cursing, but he has steel under the smile and his ship may not run military-slick but it runs a damn sight slicker than most merchant vessels.