In Wednesday Season 2, the following Addams-related character died:
- Isaac Night (Slurp), a zombie created by Pugsley Addams. Isaac was killed in an explosion during the finale when his experiment was stopped, and he was buried under the Skull Tree. Isaac's hand was later reanimated and is known as Thing, Wednesday's bodiless partner.
Other notable deaths in Season 2 that are related to the story include:
- Ron Kruger, killed by Pugsley Addams' zombie, Slurp.
- Gideon Sterling, killed by Barry Dort.
- Donovan Galpin and others related to the Willow Hill Psychiatric Hospital plotline died, but they are not part of the Addams family.
To summarize, Isaac Night, also known as Slurp, is the main Addams-related character who died in Wednesday Season 2.