watch 01:15 The Loop (TV) Do you like this video? Arnie is an employee at the N.S.A. and a friend of William Dey. Contents 1 Biography 2 Appearances 2.1 Supergirl 2.1.1 Season 5 Biography This section is a stub. You can help expand this section by adding some information. Appearances Supergirl Season 5 "Alex in Wonderland" (text message) Retrieved from "https://arrow.fandom.com/wiki/Arnie?oldid=656939" Categories: Characters Characters from Earth-Prime Article stubs Community content is available under CC-BY-SA unless otherwise noted.