A police chief who initially orders Jack to secure the site and later corroborates the official explanation at the hospital. He confirms that a toxic gas sample from the underground cavity caused the crew's hallucinations and paranoia.
Caswell oversees the security and investigation of Borman's facility.
Alex works directly under Caswell and assists in final containment.
Kat supplies vital personnel data to Caswell for situational awareness.
Caswell's case indirectly addresses the psychological fallout stemming from Susan's death.
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