Flikken Maastricht - Oda Spelbos

Actress Oda Spelbos (nm0817657) receives on-screen credits for all episodes of Flikken Maastricht (tt0920448), but did not appear in person in certain episodes. I have already added those credits to IMDb as "credit only" a couple of times, but someone keeps removing them again. Can these be restored and protected against another deletion? All episodes are available for streaming (https://npo.nl/start/serie/flikken-maastricht/afleveringen) in case additional verification is required. Thanks.