Caucasian male, American. Around 80 kg in weight. Described with a "Beach-bod buff" physique (due to muscle toning during medically-induced coma).Dr. Grace is shown to be a calm and rational person, and can be cheeky when need be. He does have a common American sense of humor, and can be self deprecating at times. He is naturally inquisitive and can become very surprised in response to new and unusual things, such as Astrophage and meeting alien life. He is also interested in learning new information, such as when he interacts with Rocky. Grace is loving towards his students, but uses this as an excuse to avoid joining the Hail Mary's crew. This prompts Eva Stratt to brand him as a "coward." He is called dr.grace because he is a molecular Biology scientist and a former science teacher.

Simon, commonly referred to as “the Convict," was formerly a Brother of Eden before being captured by the COI following the destruction of Filament Station. he has a strong build, missing an arm after an incident within his sub. wearsheavy wool layers, a thick-gauge green-dyed knit tunic, and a canvas hood. It features a complex harness system, a belt, and sturdy boots. he also has stubble, black, wavy hair that is about shoulder Simon is a man with many past traumas, flaws, and regrets. Despite this, he is perceived as a quick thinker and highly determined, doing whatever he can to survive. His will to live appears stronger than his desire for freedom, as even early on, when things begin to seem suspicious, he states that he would rather remain imprisoned than return to the moon. Although he participated in the destruction of a major outpost that belonged to the opposing side, he claims he never intended to kill anyone and considers his punishment “unfair.” He states that those in charge of the plan were never punished and simply abandoned him. Simon has claustrophobia really bad due to his cell. Simon is a man with many past traumas, flaws, and regrets. Despite this, he is perceived as a quick thinker and highly determined, doing whatever he can to survive. Simon is paranoid, worried, and frightened Recovered his religious trauma and enjoys gardening within the biodome.

Extremely smart, smarter than grace. Can speak. Is NOT A PET. has a mate named Adrian. Adrian is huge.