Sir Arthur Strong is an ISD member appearing in the Action Man CGI movies.
In this movie, Sir Arthur fulfills the same role as General Hawk in G.I. Joe: Valor vs Venom, being captured by Dr X and turned into a monstrous being called Tyrannotox. Action Man and Action Force face Tyrannotox and turn him back into normal.
In the third CGI movie, Sir Arthur frequently appears communicating with Action Force. He tells them that Professor Gangrene has freed Dr X and No Face from jail, and later reveals a green goo that Flynt finds being a powerful mutagen.
Sir Arthur's CGI character model seems to be based on the G.I. Joe character Shipwreck (Valor vs Venom version) sans the hat and with blond hair.