Error Credit Listed in a Show and for the Actor

This is an odd one I wouldn't know how to fix. Benjamin Wainwright played (is still playing?) the character Jules Maigret in the TV Series "Maigret"; also listed separately as the series "Maigret on Masterpiece". The credit is on both shows (fine) and on his bio both ways (also fine.) But for some fluke reason there is a listing for him as Jules Maigret on "The Gold on Masterpiece" on the show credits and on his bio page as well. That character does not appear in that series, nor does Benjamin Wainwright play any other role on "The Gold" (I don't think -- I haven't watched to the end yet.) I hope someone can sort out what's going on with that. (I guess I watch a lot of PBS!) Edit: Actually -- looking closer at "The Gold on Masterpiece", that show page is completely messed up. It's got the whole cast from Maigret on it, and almost no info from the actual TV series "The Gold", which does have a separate listing that does not mention Masterpiece.