Hi, everyone! Let's see if we can compile a giant list of any actors, characters, place names, objects, foreign language words, movie/song/book/etc titles, and so on that are the same as or hilariously similar to Vocaloids' names.
Leon:
Leon Scott Kennedy (Resident Evil game character)
Lola:
Lola (Lola Rennt/Run Lola Run movie character)
KAITO:
Kamikaze Kaitou Jeanne/Phantom Thief Jeanne (manga/anime title)
Hatsune Miku:
Mikleo (ミクリオ Mikurio) (Tales of Zestiria character)
Kagamine Rin:
凛/リン (Rin)/Lin -THE END OF CORRUPTION WORLD- (Visual kei band)
Rin' (Japanese band)
Kagamine Len:
Tao Ren (レン = Len/Ren) (Shaman King character)
Prima:
Prima Doll (Threads of Fate character)
Primadonna (Marina and the Diamonds song)
Oliver:
Oliver Twist (from the novel of the same name)
Olive Oyl (Popeye cartoon)
Oliver (cat from Oliver & Company movie)
LUMi:
Lumiere (Beauty and the Beast)
Leon Scott Kennedy (Resident Evil game character)
Lola:
Lola (Lola Rennt/Run Lola Run movie character)
KAITO:
Kamikaze Kaitou Jeanne/Phantom Thief Jeanne (manga/anime title)
Hatsune Miku:
Mikleo (ミクリオ Mikurio) (Tales of Zestiria character)
Kagamine Rin:
凛/リン (Rin)/Lin -THE END OF CORRUPTION WORLD- (Visual kei band)
Rin' (Japanese band)
Kagamine Len:
Tao Ren (レン = Len/Ren) (Shaman King character)
Prima:
Prima Doll (Threads of Fate character)
Primadonna (Marina and the Diamonds song)
Oliver:
Oliver Twist (from the novel of the same name)
Olive Oyl (Popeye cartoon)
Oliver (cat from Oliver & Company movie)
LUMi:
Lumiere (Beauty and the Beast)