George O'Connor was originally the voice of Symptom, but he was replaced by Joshua Reinstein, feeling Symptom and Mr. Credible sounded too similar.
Several jokes were unscripted and added during post-production, such as the two posters in Mr. Bates's office.
The script was written in about three days.
The video included a parody of the famous "Where's my super suit" scene, but it was cut because George O'Connor felt the original couldn't be topped.