Which one could get made?

Maximum Dave from Another Stakeout (1992)
Gunnery Sergeant Hartman’s Sister (1987) 
Flounder’s Older Brother from Animal House (1978)
Father Jimmy Ranable from Father Ted (1995)
Mike Yapley from I’m Alan Partridge (2002)
https://moviespread.com/2026/03/08/unseen-side-character-spin-offs/