Tomas Calderon is an agent of S.H.I.E.L.D.
Calderon had an unpleasant temperament. He was incredibly judgmental of and rude to others, even his fellow S.H.I.E.L.D. agents, although he showed loyalty to and was friends with Robert Gonzales and Anne Weaver and led the rescue mission at the academy. Gonzales was the only one who was able to compel Calderon to remain civil. Calderon had some skill in manipulation as shown when he told Gonzales that he wanted to bring Skye back when his real objective was to murder her. At the same time, he was prejudiced and discriminated against all gifted people, as shown by the way he tried to murder Skye without hesitation despite her being a loyal S.H.I.E.L.D. agent who meant no one any harm. Additionally, he showed enjoyment for other people's suffering, which was clear by his smiling when he saw Lance Hunter realizing that Bobbi Morse had betrayed him. While he argued with Bobbi and distrusted her because of her relationship with Hunter, he clearly respected her and her abilities, which he revealed to be the reason why he was so upset when Hunter escaped, as he knew Morse could have prevented him with her fighting skills if she had wanted to.