Any other similar actor as same character roles?
In Enterprise's early stages, the Vulcan science officer was going to be T'Pau. But again, having to pay royalties to Amok Time's writer became an issue and the character became the new character T'Pol.
The same could be said for Armin Shimerman, who played the Ferengi Letek on one episode of TNG before being cast as Quark. Of course, in his case it's a bit more understandable, since the Ferengi are shorter than humans on average.
Armin Shimerman in fact played two different Ferengi before becoming Quark. In addition to Letek, he was also Bractor in TNG's Peak Performance.