During the Clone Wars, Captain Rex’s helmet slowly accumulates more and more tally marks on his modified Phase 2 Clone helmet, making it very clear that he is a verteran of the war. But what did the tally markings on Rex’s helmet mean? Were they droid kill marks, memories of his fallen brothers or something completely different? Why Does Captain Rex Have Tally Marks? I’m going to break down some incredible theories about what these marks on Rex’s helmet could mean. As the Clone Wars dragged on, Rex’s armour began to become more worn and the tally markings on helmet and platelegs began to increase. There are a few theories on what exactly these tallies could mean, including some very heartbreaking ones. I’ll go through each theory and determine which one is the most likely based on what we know so far.