Archer is back! :D
Poppy's younger found brother
I see Poppy and him having a found sibling relationship with Poppy being the caring older sister. I think Archer was about 16 when he was first introduced so he should be 20 by now.

I wish I knew what happened to him after he became apart of Pop Village. My theory is that he either eventually moved back to his old home or is just minding his own business on the sidelines, just trying to have what he calls a normal and happy life in Pop Village.