Sporadically speaking

There’s a character in Loveless who talks in the third person too, isn’t there? It seems to be a specific trait of generally cheery girls in that case and perhaps might then be an issue of translation. People say each other’s names quite a lot in Japanese dialogue after all but if directly translated into English it sounds a little strange. That said I’ve been known to refer to myself as His Imperial Narsusness in the third person for comedy effect on occasion, except I should probably be saying “Our Imperial Narsusness bestows upon all a Sunday with which to celebrate the magnanimous occasion of our birth in this given year of two thousand and eight” using the first person plural really.

Reasonably though the only way I can see it working would be in this sort of case:
“I think Radu’s drunk” Ion commented to nobody in particular as he bent over the figure sprawled across the bed for a closer look.
“Damn right, Radu’s drunk” came the muttered reply.
Or:
“…and so you see it’s perfectly obvious when you consider it…” Isaak swung his arms wide illustrating his point and requiring that Dietrich duck quickly or risk being backhanded across the face.
“Dietrich’s gonna bite chu.” Came the grumble, though Dietrich did remain with his head half tipped to the side as if expecting another near miss.