Episode 105: Darkness Ascending/And All My Dreams Torn Asunder (Season 5, Episodes 14 and 15)

Summary: In which the Centauri involvement in the attacks on Alliance ships comes to light, and the consequences of Garibaldi’s addiction build.

https://www.imdb.com/title/tt0517642/?ref_=ttep_ep15

https://www.imdb.com/title/tt0517626/?ref_=ttep_ep16

http://www.midwinter.com/lurk/countries/master/guide/103.html

http://www.midwinter.com/lurk/countries/master/guide/104.html

Edmund L. Shaff https://www.imdb.com/name/nm0787283/?ref_=tt_cl_t15

As the Chaplain on Space: Above and Beyond https://youtu.be/FOb6V9gzrKM?t=493

Tamlyn Tomita as Commodore Oh in Star Trek: Picard

October Faction: https://www.youtube.com/watch?v=RexcOKt3k9k

A familiar, although much younger, face winning fame and fortune on a tv game show.

https://youtu.be/-rpnabM26MM

The people that were wiped out by a death plague were of course the Markab.