He is left-handed as seen in the episode, "Sex and Taxes". In season 7, episode 6 it is revealed that Ryan is afraid of heights. On the Stoned Cold episode, in which a victim was a school bully, he revealed to Eric Delko that he was bullied as a child which resulted in a neck injury as well as damage to a telescope he saved up on his allowance for. His colleagues later surprised him with a new telescope in his locker.