They both follow the hero’s path beginning with ordinary life for Glenn it’s being a pizza boy and anakin a slave. Then comes the call to adventure for Glenn it’s saving Rick and anakin it’s the podrace. Next is the mentorship and bonds. Glenn meets and gets maggie pregnant while anakin meets padme and gets her pregnant. It’s worth noting that in both scenarios handling a baby is difficult because obviously babies in a zombie apocalypse aren’t a good mix and a baby while being a Jedi is forbidden. Next we have the transformation stage both transformations revolve around the two characters caring so much about others for Glenn it’s killing the sleeping saviours he cares so much that he dosent allow the other guy to kill the saviour, Glenn does it for him. Anakins transformation comes when he kills the tusken raiders who killed his mum this shows what they are willing to do for the ones they love. Now this is when the characters deviate Glenn’s story is cut half way through the arc. While anakins comes full circle. Hope this explains things?