Major character who has only appeared on 1 page in the entire OOTS saga

[b_jonas]

Yeah, in bed with a greenish skin tone with his wife bringing him soup, if I recall.

(Not sure if that's still accessible to us, […])

[url=https://www.giantitp.com/comics/GuestStrips.html]Bottom of "Guest Comics and Filler Art". Find it by clicking on the exclamation mark icon over any strip.