Lieutenant Renato Olivar was the Engineering Officer of Lexington. He resided in 2B. He used to read an old volume of "Frontiers of Nanotechnology", a treatise on terraforming Mars and a collection of color holograms of orbital platforms.

On March 21 he was in Engineering with Mary Quan when James Poole started grilling him about the upgrades made to the Lexington during the overhaul at the McHenry yards. These questions made Quan to think that he was trying to get up to speed on his new assignment, if they weren't hinky.

On April 20 he narrated to Quan about Poole's and Taewon Narang's heated argument over the causes of the war.