Lisa Edelstein (Capt. Strands ex-wife) and Rob Lowe also starred together in 5 episodes, season 1 of the West Wing. In that series she played the high priced call girl who Sam Seaborn was "dating".
The Congress Avenue Bridge is a sight-seeing location known for the largest urban bat colony in the world.
Barton Springs is a set of four natural water springs located at Barton Creek on the grounds of Zilker Park in Austin, Texas.
Gina Torres joins the cast, effectively replacing Liv Tyler who didn't want to continue commuting from the UK (where she lives) to the USA.
This episode takes place four months after the Season 1 finale.