Episode 12: Not actually dead (LD 3×08 "Crisis Point 2: Paradoxus")
Kev & Rob are divided on the return to the holodeck that was Star Trek: Lower Decks season 3, episode 8, "Crisis Point 2: Paradoxus", but they're both pretty sure that the "resurrection" of Boimler's transporter clone William won't live up to the legacy of Spock's return in Star Trek III.
LD 3×08 Crisis Point 2: Paradoxus (Memory Alpha)
Star Trek II: The Wrath of Khan (Memory Alpha)
The Fifty-Year Mission: The Complete, Uncensored, Unauthorized Oral History of Star Trek: The First 25 Years (Macmillan Publishers)
Star Trek III: The Search for Spock (Memory Alpha)
Philippa Georgiou (Memory Alpha)
Data (Memory Alpha)
Hugh Culber (Memory Alpha)
Natasha Yar (Memory Alpha)
Sela (Memory Alpha)
Morn (Memory Alpha)
Jean-Luc Picard (Memory Alpha)
Elnor (Memory Alpha)
Shaxs (Memory Alpha)
TNG 7×15 Lower Decks (Memory Alpha)
Sito Jaxa (Memory Alpha)
DS9 6×12 Who Mourns for Morn (Memory Alpha)
Music: Distänt Mind, Brigitte Handley
Star Trek II: The Wrath of Khan (Memory Alpha)
The Fifty-Year Mission: The Complete, Uncensored, Unauthorized Oral History of Star Trek: The First 25 Years (Macmillan Publishers)
Star Trek III: The Search for Spock (Memory Alpha)
Philippa Georgiou (Memory Alpha)
Data (Memory Alpha)
Hugh Culber (Memory Alpha)
Natasha Yar (Memory Alpha)
Sela (Memory Alpha)
Morn (Memory Alpha)
Jean-Luc Picard (Memory Alpha)
Elnor (Memory Alpha)
Shaxs (Memory Alpha)
TNG 7×15 Lower Decks (Memory Alpha)
Sito Jaxa (Memory Alpha)
DS9 6×12 Who Mourns for Morn (Memory Alpha)
Music: Distänt Mind, Brigitte Handley