A few well-known examples include:
David Bowie, Mick Jagger, Penelope Cruz.
Have you ever seen Jon Snow from the Game of Thrones? It’s so cool! He has one green eye and one blue. Aldis Hodge in Copperhead is also a great example! That show is rad.
Harold Perrineau from Lost looks like he might have heterochromia iridum as well! In any case, there are tons of celebrities with this condition all around the world. It sounds fascinating to say the least!