- Full Name: Santiago Vincenzo Montoya
- Current Rank: Ensign
- Race: Human
- Date of Birth: 236906.25
- Age: 26
- Place of Birth: San Cristóbal de las estrellas, New Madrid Colony
- Gender: Male
- Height: 6'0" (183 cm)
- Weight: 195 lb (88.7 kg)
- Hair Color: Black
- Hair Style: Medium length, neatly combed back
- Eye Color: Grey
- Skin Tone: Olive
- Build: Slim, muscular
- Face: Angular
- Handedness: Right
- Quarters: Spartan, few mementos, limited possessions.
- Favorite Room: The one he's in at any given time.
- Mannerisms: Stand-offish, doesn't tend to mix well with others outside of professional duties.
- Ambitions and Goals: To leave his youthful life behind, start fresh, make a name for himself.
- Achievements in Life: Graduating from Starfleet Academy
- Disappointments in Life: "I'll be keeping that to myself, thank you very much..."
- Temperament: Tends to be "quite pleased with himself" when things go well. Driven to succeed, throws himself into tasks. Generally unapologetic when it comes to mission objectives.
- Spouse: N/A
- Children: N/A
- Father: Raphael Montoya (deceased)
- Mother: Siobhan (Phelan) Montoya
- Siblings: N/A
Born on a small agricultural planet. Simple life, but happy, until the accident. Santi doesn't speak of it, but records show that several of the community's elders were killed in a fire at the town centre. His father was apparently one of those killed, though autopsies were poorly done, and some were inconclusive. Montoya was raised by his mother from age 7.
He became obsessed with getting away from San Cristobal, and Starfleet became his main focus and goal.