Crediting in-episode named appearances that don't appear in the show credits

Hi,

I'm about to start adding credits to a fly-on-the-wall documentary TV show that exists on the site, and that has a defined list of credits at the end of those in the episode. However, throughout the episode, various individuals are explicitly named (and titled with their profession), but if an individual gets this credit, they are not included in the list of scrolling credits at the end of the show.

Should these individuals be listed as uncredited? Or, if not (as they do actually get named in the episode), how does the credit numbering work? Do they precede or proceed those listed in the main block credits at the end?

Thanks