Placeholder person
Character Poseidon
Gender Male
Race Merman
Occupation (Possibly) King of Atlantica
Status Deceased
Family King Triton (son)
Queen Athena (daughter-in-law; deceased)
Attina, Alana, Adella, Aquata, Arista, Andrina, and Ariel (granddaughters)
Melody (great-granddaughter)
Appearances None
Voice Actor Tom Kenny

Poseidon is the father of King Triton, and therefore the paternal grandfather of Ariel and her sisters. He is, presumably, the son of Triton's Grandpa Neptune.