I watched this TV series in the late 80s or maybe the early 90s, it was subbed in Arabic
Most likely it was American and it was not animated, I believe its from the same era of Small Wonder.
I don't remember that much about it but it involved a group of aliens who live among us secretly , they look just like us however I cant remember if they could shape-shift or not. One distinctive thing I remember is that they could jump very high (due to the different gravity) when nobody was looking since they are from an other planet.
There was at least two men and I think of them at least was working a police officer or something like that and he used his powers once to sort out problems/crimes when nobody was looking. Sadly that's all I can recall
Edit: I think I remember they had a massive ship in the outer space
Edit2: I have check all the shows mentioned in the answers and comments including V original miniseries, sadly it's none of them. I'll assume that my memory is bad and the show is not American nor in English. I don't think it's from the 80's most likely from the 90's