From Halopedia, the Halo wiki
Caleb F. Aagard (civilian identification 78104-985-RBA8774) was a candidate for the SPARTAN-II program, though he eluded his captors. Had he been conscripted his official designation would have been Caleb-095.
Caleb Aagard was born on May 16, 2511 in Newport on Luyten in the Luyten 726-8 system. He grew up in the city of Old Willem, at 22 Hunnestad Road. During his childhood, he suffered a head injury due to a farming accident. Neuroimaging of Caleb's brain conducted after the incident confirmed a neural network accretion often associated with intuitive behavior—commonly called "precognition". On account of his exceptional attributes, Caleb was selected as a candidate for the SPARTAN-II program. However, he was never located during the attempted abduction. Doctor Catherine Halsey blamed this on failings in the mission, denouncing the rumor about his supposed prescience.
Personality and traits
While evaluating his aptitudes, Doctor Catherine Halsey regarded Caleb as extremely intelligent, namely scoring a 161 on the Finchy-Franks Intelligence Quotient. Like each candidate for the SPARTAN-II program, Caleb boasted superior strength and speed than his peers, along with a remarkable intellect and cognitive absorption rate. However, he was very self-sufficient and introverted.
While neuroimaging conducted on his brain confirmed that Caleb had a neural network formation often associated with intuitive behavior, Halsey criticized the claims that he maintained limited precognition.
List of appearances