Wells was cast as the homicidal biker Wez, in Mad Max 2 (1981),[3] filmed around Silverton near Broken Hill in outback New South Wales, Australia.

It is the role for which he is probably best known to international audiences, as Wells portrays a psychotic, post-apocalyptic henchman who relentlessly pursues hero Max Rockatansky (Mel Gibson), before meeting a spectacular death at the film's finale.

Hollywood beckoned for Wells, and he spoofed his mad biker role in the popular 1985 teen comedy Weird Science,[2] written and directed by John Hughes and produced by Joel Silver.

Many of Wells's roles 1990s and 2000s portrayed villains, as in the films Circuitry Man (1990), Kick of Death (1997), Starforce (2000) and Power Rangers Time Force (2001).

In the Power Rangers episodes, he played the role of Ransik, a mutant crime lord from the year 3000 who travels back in time to take over the world.