But a lot of them are memorable enough to still count in the overall cast. Rachel's parents, April, the McCrockagans, Tibis, Batdragon and Cynthia, Natasha...
Not to mention the Jix cast, which is in a different comic but still within the same canon.
Not saying main cast, just saying overall "they exist in the comic and they've played enough of a part that we remember them for their (minor as it may have been) part in shaping the comic over the years" cast.
I still only count the main 6 as part of the cast. I consider the cast the main characters, not everyone memorable.
That being said, my cast is still only 6. The Simpsons is kind of the same way. They have the main family and a ton of minor side characters that are extremely memorable. I'd still only say the main 5 of The Simpsons are its cast.
Not to mention the Jix cast, which is in a different comic but still within the same canon.
Also, Natasha doesn't count. She's basically Erin.
As for Jix, they have their own comic to be the main cast of...or they did, anyway.
That being said, my cast is still only 6. The Simpsons is kind of the same way. They have the main family and a ton of minor side characters that are extremely memorable. I'd still only say the main 5 of The Simpsons are its cast.