Dr. Jonathan Sense
Employee of Cheiron, inside agent of the Covenant
Dr. Sense is an undercover contact for the Covenant, although being an employee for Cheiron. He has helped Liam and Max several occasions, including patching him up after a harsh tussle with ADDER.
Dr. Sense is a surgeon and often works with Dr. Boom on various experiments. He was the contact that Max met to acquire information on the whereabouts of his blood. He seems to be sane.