Marion Cotillard who plays Lori in this episode, previously played the girl giving birth (uncredited) in the episode 'Saving Grace'.
Anthony Head used an American accent in the filming of this episode, when he is in fact British. In season six there is a similar episode of a diplomat's son committing a crime, "Diplomatic Immunity". In that case the son is played by Alexis Denisof. Both Denisof and Head go on to play watchers in Buffy the Vampire Slayer. In that series, Alexis Denisof uses a British accent, even though he is American. In fact, Anthony Stewart Head helped to coach Denisof with the British accent in Buffy the Vampire Slayer.