John Ley (Charlie from Mad Max) cameo in Bartertown?
When Max goes into Bartertown, he gets led past a group of chained workers. One of them turns and looks at Max, wide-eyed with recognition. He has a crude bandage of some kind bound around his neck and throat. It looks an awful lot like actor John Ley, whose character in Mad Max, Charlie, loses his voicebox and ends up with a trach ring and voice synth.
"...Of all the Thompson Gunners, Roland was the best..."