Kenneth Choi for an actor who is just lucky on doing another role in another Marvel Cinematic film, he is set to be playing the principle at Peter Parker's high school in Spider-Man Homecoming but there is a 20 to 25% chance that he might secretly be cast for an actual character we know of from the Marvel comics over the decades. The one character that Marvel would have Choi cast on portraying in the movie behind his role as school principle is none other than The real Mandarin
Now surely I of all people are anxious on seeing the actual version of Tony Stark's archenemy show up right away in the MCU but because Robert Downey Jr is set to reprise his role as Iron Man in Spider-Man Homecoming, with some of the soldiers of the Ten Rings are revealed to have bases spread across other parts of the Earth, and because of how rare it is to find asian citizens running schools here in America, there is a slight chance that the school principle that Kenneth Choi is playing in Spider-Man Homecoming may turn out as the actual Mandarin after all.
If so then he throughout most of the film will act as principle at Peter's high school and after Spider-Man and Iron Man defeat the Vulture, the principle as the actual Mandarin will later before the final scene of the movie before the end credits reveal himself to Tony but warns him about the Mad Titan Thanos. Of course later he would be replaced by Lee Byung Hun or another asian american actor for Iron Man 4 and more films so that the character can take Iron Man on in a fight with the power of his ten magic rings and Martial Arts Skills while wearing protective magic enchanced armor. Now while we wait for the filming to get started, we might as well talk it over on whether my speculations on Kenneth Choi's principle ending up as the Mandarin will turn out true or not.