|Affiliation|| Fort Hold |
|Parent(s)|| Red Hanrahan |
|Siblings||Sorka, Brian, Simon, Maureen, Pat|
|Notable appearance||The Ford of Red Hanrahan|
Ryan was born two and a half years after Red Hanrahan and Mairi Hanrahan lost their youngest child during the epidemic and was the last, ninth, their child. Red did not want Mairi to get pregnant again - constant pregnancies started to affect her, and not in the best way.