- For other similar articles, see: Madden (disambiguation).
In the mirror universe, Madden was a member of the MACO detatchment aboard the ISS Enterprise (NX-01), with the rank of Corporal. He was a member of Captain Travis Mayweather's personal security contingent. (ENT - Mirror Universe novel: Age of the Empress)
- It is unknown if Madden has a counterpart in the primary universe.