Deezer

 is a robot living in the Commonwealth in 2287.

Background
Deezer is a Mister Handy living in the settlement of Covenant. He makes a drink called Deezer's Lemonade, which all the people of Covenant love and drink. He is very enthusiastic about his lemonade, stating that the town had voted his drink the best drink in town for 4 years, despite not knowing what is in the lemonade exactly.

Interactions with the player character
During the quest Human Error, Deezer will deny any knowledge of the caravan when questioned. Deezer can give the player a can of his lemonade for free, but only once per day. If the player investigates the caravan, they will find a glass of Deezer's lemonade on one of the corpses, proving Covenant's involvement. Upon revealing Covenant's secret, he will become hostile.

Appearances
appears only in Fallout 4.