A very recent example of this is the passing of Luke Perry, who was the voice of Sub-Zero in the cartoon series of Mortal Kombat. MK Co-creator Ed Boon express

A very recent example of this is the passing of Luke Perry, who was the voice of Sub-Zero in the cartoon series of Mortal Kombat. MK Co-creator Ed Boon expressed him sympathies on Twitter and a number of fans replied to him, asking why he wasn't including specific characters in the next installment in the series.