There are some shows where all the cast is credited together and as such all are treated as main cast (more common for older cartoons).
However, when I click on "Cast" of some show, I don't see any ordering there. Nor by actor's name, nor by character's name. This can be very difficult to add new characters, especially if same actor did several roles. In order to do so, I need to go through all to see if the actor-character pair already exists and if not to add it. This would be much more helpful if actors or characters are listed alphabetically and not in a random order.
Look at this for example: https://www.tvmaze.com/shows/1898/gargoyles/cast
The cast here just looks randomly ordered. I am guessing they may be ordered as they were added. But this isn't helping anyone.
I know that guest cast characters are ordered in number of appearances in the show which makes sense. But main cast doesn't have any order and alphabetical order would really help (either by character name or by actor name).
