In the more recent Star Treks (Enterprise, DS9 and Voyager), the same actors have been used to portray several characters. An example is Jeffrey Alan Combs, who played Weyoun and Brunt in DS9, Shran in Enterprise and Penk in Voyager, among many others.
All of these characters, obviously, look similar, and so my question is as follows: is there any in-universe explanation for the similarities between the characters?
Here is where I sourced my information, and where you can find a list of Combs' other appearances in Star Trek.Here is where I sourced my information, and where you can find a list of Combs' other appearances in Star Trek.