Augustus Oduya

Colonel Augustus Oduya, was an officer working with UNIT in the early 21st century.

456 Incident
During Day One, he meets with civil servant John Frobisher and shows him locations of children who have stopped all over the world and announce suspicions of an alien invasion (The 456). He correctly deduced that if UNIT had pieced the situation together, then Torchwood Three also must have.

Oduya reappears in Day Three, arriving at Downing Street to witness the 456's first contact. Oduya wanted UNIT to be involved in the handling 456 incident.

After John Frobisher killed himself on Day Five, Colonel Oduya was selected to continue negotiations with the 456, and UNIT soilders entered Floor 13. Oduya asked - not as a representative but as a father - what they will do to the children once they are given to the 456. Upon receiving the reply that the children would essentially be used for drugs, he was clearly horrified. Oduya was present when the the 456 Ambassador was killed and reported this disappearance back to UNIT. (TW: Children of Earth)

Behind the Scenes
Even though Colonel Oduya was in episode 5 he was not credited