Ryder Hannigan

Oliver Barrett
Personal details
Species:	Human
Gender:	Male
Political and military information
Affiliation:	Unified Earth Government (civilian)

"Who the hell do you think you are, Giraud?! You're just some backwater conspiracy nutjob looking for a quick bump by damaging the reputation of the greatest hero humanity has ever had. One-One-Seven is the only reason you, me, anyone exists here, buddy, and you had better appreciate that! Let the Chief just do his job, and let respect what he's done for you."

— Barrett's audio email to Giraud, sent 2558.

Ryder Hannigan is a human who listened to Benjamin Giraud's Hunt the Truth audio journal in 2558. After Giraud's entries claimed that the Master Chief's origins were not so heroic as claimed, Hannigan mailed Giraud an audio email where he angrily claimed Giraud was an attention-seeking liar. He demanded Giraud leave the Master Chief alone and appreciate how he had single-handedly saved humanity from extinction.

List of appearances

• Hunt the Truth (First appearance)