Wyrmwood is a pretty cool guy...

You're aware that there wasn't actually a character called 'Wyrmwood, aren't you?

Benny, the Aboriginal guy said that when he saw the falling star/meteor shower he remembered a bit in the Bible, Book of Revelation:

"The third angel sounded his trumpet, and a great star, blazing like a torch, fell from the sky on a third of the rivers and on the springs of water— the name of the star is Wormwood. A third of the waters turned bitter, and many people died from the waters that had become bitter." (Rev 8:10–)

Wyrmwood is referring to the star(s) that fell that caused the zombie outbreak not a character's name!