If one of the characters in the article picture is clearly more prominent than the other, to the point that the viewer can't even remember the other guy's name, then it's not really this trope, is it? This page is more for the pairs the viewer knows immediately as X'n'Y, Y'n'X, or, you know, Those Two Guys, not X and whatsisface.

Removed this section:

• Alice in Wonderland: I find it odd that nobody mentioned Tweedle Dee and Tweedle Dum yet. They never appear outside each others company and they contradict everything that the other one says. Of course, you could argue their normalcy (though in their native setting they are by no means as unusual as some of their contemporaries) and their relevance or irrelevance to the story at large. They seem as random as everything else she encounters, but that isn't to say they aren't important... somehow.

They are as random as everything else Alice encounters. She spends no more time with them than with any other character; they don't act as a Greek Chorus, and they have a whole mini story all to themselves. Just because they're two guys doesn't mean that they're Those Two Guys.

dotchan: Would Pollo and Vorenus from Rome count, or are they disqualified on account of being main characters?

It depends. If the main plot is aristo machinations and the sub-plot is Bad Ass peasants survivng in a World Gone Mad, then they count as a Greek Chorus.

Ifn Vorenus and Pollio are the main plot and Aristo machinations are background detail, then obviously not.

IMPO both Noble and Peasant POV are equally essential to the Story. Therefore Vorenus and Pollio qualify HALF the time.

Why not a publicity shot of C-3P0 and R2-D2? They're the most prominent Two Guys in media history, so much so that I didn't even have to name the franchise they appear in in my first sentence.

So... what is this about?

Do Thompson & Thomson from Tintin count?