Which characters appeared in every eps?

I think that Richie(before he left) did and Joanie even though the episodes didn't focus on them they were still on there. I could be wrong though.

What about Mr. C and Fonzie?

I'm fairly certain that Fonzie and Howard were the only characters that appeared in every episode.

Fonzie was a small characer the 1st 2 seasons, are you sure that he didn't miss a single eps then? And what about Mrs. C?

I am positive Fonzie didn't miss any episodes - even when he was a minor character early on. Marion wasn't in "If You Knew Rosa."

i think howard was in ever episode and then maybe fonzie also

Alright thanks.