Casey Jones in the 2003 TV series wearing a goaltender mask.
A goaltender mask, also known as an ice hockey mask or goalie mask, is a piece of sporting equipment used to protect the face and/or head of players in the position of goaltender in the games of ice hockey, field hockey, inline hockey bandy and floorball. These have later evolved into more helmet-like masks.
Nearly all incarnations of Casey Jones wears a goaltender mask at some point, usually functioning as face armor and sometimes also as a disguise. The modified version worn first by the Mirage version is considered iconic and instantly recognizable.
Other goaltender mask wearers include Image Raphael and Turtle X.