Unlocking Characters in Mario Kart 8

It seems that I unlock a character each time I win a gold cup that I didn't have before. For example, if I win the leaf cup in 150ccm for the first time, I get a new character, but if I win it in 150ccm again, I don't.
I only played 150ccm so far and got the gold cup everywhere. Now I guess I can't unlock any more characters in 150ccm. But can I unlock more characters by playing the lower difficulty, even though the cups and stars carry over to the lower ranks? Or is my only option to win 200ccm cups now? If yes, how can someone who started with 200ccm (and got all gold cups there) ever unlock every character?
It seems I did not state clear enough what I want to know, so I try again:
If I have won a gold cup in some difficulty for the first time (and unlocked a character by this), will I be able to unlock a new character by playing the same cup in an easier difficulty?
I have already tested that it is NOT possible to unlock a new character by playing the same difficulty again: I played the mushroom cup 3 times in 150ccm, every time with 60 points (=always first), but still only got ONE character unlocked.
Best Answer
According to this wiki, you get random characters simply getting gold on any CC in Grand Prix mode.
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How do you unlock characters on Mario Kart 8?
Characters: The Switch version automatically unlocks all characters from the get go, apart from Gold Mario. On Wii U, a character will unlock at random upon each cup win, apart from DLC characters which are already available.Are there any unlockable characters in Mario Kart 8 Switch?
To get all three items you'll need to complete a series of challenges.How do you unlock everything on Mario Kart 8?
They are unlocked randomly as you complete the races until you have them all. Morton, Larry, Wendy, Ludwig, Roy, Lemmy, Iggy and Lakitu are all the Koopslings.Mario Kart 8 Deluxe: How To UNLOCK Everything 100%! (Gold Parts, Gold Mario, \u0026 Alt Title Screens!)
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Answer 2
New characters are unlocked at random for each cup you complete, in any engine class. The exception is the Mii character, who is unlocked when you get the gold trophy in every cup in a single engine class. There are a total of 14 unlockable characters, including the Mii.
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