Andrew's job is simple: Ensure that whomever is inside the jail, stays in there, and whomever is outside, doesn't get in. This simple duty is quite important to Lars and the general order of Junktown, however.
Interactions with the player character
Interactions overview
This character has no special interactions.
Other interactions
Andrew doesn't talk much, but will turn hostile if the player attempts to lockpick the jail door. Blowing it up and later getting transported inside and walking out does nothing, however.