Birdman
Birdman was a Runner long before there was a word for it. At first, it was simply a way for him to get around, but when the Conglomerate began to reshape Glass he saw his way of life threatened and started doing runs for the resistance. He came to inspire others, which in turn gave rise to the cabals. Though he still runs occasionally, he is now way past his prime and contemplation and pigeon-feeding have become a higher priority..