Same fictional characters (with same actors) appearing in unrelated movies

Tor Johnson played a character named Lobo in three films, Bride Of The Monster, The Unearthly and Night Of The Ghouls. Since he looked somewhat similar in most of his movie appearances it's difficult to tell whether it's supposed to be the same name, different character or something else. He strikes me as the same character in these three and a few other films in which he played a virtually identical character with a different name.

I think this qualifies: Keye Luke played Lee Chan, Number 1 son of Charlie, in several entries in the Fox Charlie Chan detective series movies. In 1938 he played the same character in a Mr. Moto picture, Mr. Moto's Gamble, also in a Fox series of films about an Asian detective, not about Lee Chan, who merely makes a "guest appearance" (as it were) early in the film. There is clearly a connection between this films and the Chan series, due to Mr. Luke's playing the younger Chan, however it is in another series, channels the Chans, is not in that series.