Stargate

The main reason why Wright and Mallozzi took only "consultant" roles has to do with guilds/unions. SAG/WGA are very particular about "ensuring writers get a fair chance" meaning producers can do little writing if they're primarily producers (writers and actors can, on occasion, produce, as a way to step into the role, and producers can occasionally write, but you can't have a producer who sits in the writer's room and strongarms all writers).

And indeed it's a shame they've been rugpulled. I was so excited about the new show, and Amazon has to fumble it just to make some newcomer useless moneypit feel important for a moment.