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Universe Goropikadon
Full name/Real name/Shorter name Goro, Pika and Don
Japanese name ゴロピカドン,
ゴロ, ピカ, ドン
First appearance 1982
Based on Caveman
Gender Male
Nationality Land of Thunder

The Goropikadon are a group of three Sanrio brothers introduced in 1982. The siblings consist of Goro (blue hair), Pika (pink hair) and Don (teal hair).


The Goropikadon are three cheeky brothers who were born in the Land of Thunder on "the 25th day of the 14th month of the 53rd year of the thunder calendar". They don't like the rain.

The oldest son Goro has blue hair, loves eating and making jokes. The youngest brother Pika is good at the thunder drums, and is child-like and shy. Don is serious and loves to invent things. He is aiming for a Nobel Prize.[1][2]