Jedi Knight Qui-Gon Jinn and Obi-Wan Kenobi

 https://www.hollywoodreporter.com/tv/tv-features/obi-wan-kenobi-liam-neeson-star-wars-qui-gon-jinn-return-1235170286/

A surprise appearance of a key character is always nice.

https://www.digitalspy.com/tv/ustv/a40392914/obi-wan-kenobi-liam-neeson-qui-gon-cameo/

https://www.gamesradar.com/ob-wan-kenobi-liam-neeson-qui-gon-jinn-star-wars-cameo/

https://www.digitalspy.com/tv/ustv/a40372353/obi-wan-kenobi-qui-gon-jinn-force-ghost-explained-liam-neeson/

https://www.polygon.com/star-wars/23167348/obi-wan-kenobi-qui-gon-liam-neeson-ian-mcdiarmid

https://www.dailymail.co.uk/tvshowbiz/article-10945503/Jedi-master-Qui-Gon-Jinn-returns-final-episode-Obi-Wan-Kenobi.html

https://www.denofgeek.com/tv/star-wars-obi-wan-kenobi-finale-cameos-cast-breakdown/

https://thedigitallabyrinth.blogspot.com/search?q=Obi-Wan+Kenobi