|Family||Maxine Seagrave † (daughter)|
|First Appearance||"Let the Games Begin"|
|Last Appearance||"Let the Games Begin" (Alive)|
"Speak of the Devil" (Corpse)
|Cause of Death||Drowned|
|Series lifespan||"Let the Games Begin" to "Imperfect Circles"|
|Agatha was left to drown|
|Agatha Seagrave Gallery|
While under captive by Big Jim, she was being transported from her island villa to the mainland in a motorboat when she fell overboard. Big Jim was about to rescue her, but then decided to let her drown, as she was tied up and couldn't swim. Sometime later, her body washed ashore and was found by her daughter.
- Agatha second name is Sea-grave which is ironic because her grave becomes water.