Steedman was very active within the Aliens fan community and was an honorary member of the United Kingdom Colonial Marines (a United Kingdom-based Alien and Predator costuming group) and regularly attends conventions with the group and even dresses in Colonial Marine armor at shows himself. In 2014, Steedman suffered a stroke. Following a second serious stroke in 2016, he was admitted to hospital but never regained consciousness, and passed away on June 25, 2016.