Which API is used by this application to scrap the series cast ?

If it used credits, it will only get the actors listed on the last season of a series. (There is a big blue block that explain it).

To get all the actors, it is necessary to use aggregate_credits. (The difference between the 2 is also explained in a big blue block).

I am not sure i am not the creator of the application it used to be able to get al the actors.

I invite you to transmit this informations to the creator of the application.

It looks like the aggregate actors api is broken since i tried it on TMM and Media Companion and Ember Media Manger the aggregate_credits is broken since all 3 are all media organizers and each one has the same results it doesnt always get all the actors. Sicne i tried it it with Octonatus and none of the 4 actors were grabbed but it grabs them with episodes all 3 actor pictures.

But it doesnt add the actor names

I even tried it with the Loud House and it doesnt grab every actor pictuer it look liket he aggregate_Credits is broken.

Its most likely that he use credits instead of aggregate_credits.