IMDb's problematic “Known For” algorithm is back, and this time it's a quiz!

Can you guess who this actor is?

Here's a hint: I associate him with none of these movies. But I do associate him with several fairly popular films from the 1980s. Am I wrong? Is the algorithm? Here are some of the factors that “may” (IMDb's word) count toward “Known For” designations.

The job performed on the title (a credit as director will have more weight than a credit as production assistant).

Our mystery guest is mostly an actor: 97 credits. He's directed two things. He's produced six. The above are all for acting.

The frequency of credits for a particular job in the context of the person's filmography (writing credits may have more weight for someone who is more frequently credited as a writer than as a producer).

Actor. See above. So far it's working.

The type of title (a credit for a theatrical feature has a different weight than a credit for a short film or a TV series).

Our mystery guest did have a semi-popular TV series in the 2000s but that didn't make the cut. But I associate him more with that series than with any of the above. Problems appearing.

The popularity of the title (this takes into consideration the number of hits/page views, the average user rating, any awards won by the title and several other indicators).

OK, this is where it starts getting crazy. Obviously “Dark Knight” is a popular title, and maybe “Foxcatcher” a little. But the other two? Not at all. And the movies that are missing? The ones I associate him with? More so. Here's how each of these movies rank, in terms of this guy's overall filmography, compared with the movies I associate him with:

“Dark Knight” aside, most of my movies trump the “Known For” movies by IMDb's own criteria. 

The relative importance of the credit among similar ones for the same title (for example an acting credit for someone who received top billing will weigh more than an acting credit for a cameo appearance).

And here's where it gets crazier. Along with his credit placement, per IMDb, I've included whether or not he's on the movie's main poster. 

In every one of the movies I associate him with, he's either a lead or supporting. And his credit in “Movie 2” is misleading. He's one of the six leads in it. He just gets sixth billing. 

Ready to find out who the dude is? Here are the movies I've hidden until now:

Yes, it's Anthony Michael Hall. 

And when you think Anthony Michael Hall, of course you think “Live By Night.” And “Dark Knight.” And “War Machine.” Doesn't everyone? 

I mean, that's gotta be one fucked-up algorithm.

Here's the thing, though. While researching the above, I came across this beauty of a caveat on IMDb's explanation page for its “Known For” algorithm:

Since this is an entirely mathematical approach, some of our Known For choices may occasionally not be the best or most representative ones - if you're an active IMDbPro member, you may select your Known For titles. (italics mine)

Holy hell. So did A.M. Hall choose these films for himself? How does one know? Shouldn't there be a proviso stating so? If he did, there isn't. If he didn't, my original thought stands: that's one fucked-up algorithm.