I would think the boss could make a new name tag for him.

So the boss should give him a new name?

or the boss could not encourage the situation making it worse. I'd be pissed too if someone told me to "lighten up" over something that was seriously bothering me.

Yeah, I thought it was more of the listen/try to understand op's frustration rather than expect him to actually do something. When voicing frustrations, it could just mean they need to vent rather than expect you to do something, and people dismissing it or telling you to lighten up when venting makes the frustration worse.

THE KING IN THE NORTH! THE KING IN THE NORTH!

Robb Stark was king of the north not John snow

I used to have a coworker named Chris who hated giving people his full first name. Because it was Christoph. Not spelled the same as the character, but he still got Frozen comments whenever it was brought up.

There is more than one way to spell that name, and I'm sure OP spelled it the way he did because that's how his is spelled.

When your referencing a quote like op did then, yes you need to get the name right no matter the way YOU think its spelled bit the actual spelling.

A man who knows nothing.

You're on an Internet capable device. Google it.

It's from game of thrones

You must not spend any time on the internet ever, save for this site.

Apparently you since you know nothing...

I did