Andrea is the son of Roman and Aya Tanner as well as the younger brother of Ethan and Yuna. He is Kendra's Romantic Interest for the majority of their Teenage years. Kendra, at first, doesn't appear to be that interested in Andrea because Lifesimmer herself was unsure about him, however she does become his girlfriend in good time. He receives a makeover which proves him to be quite an attractive sim. Andrea and Kendra don't get engaged until they reach Adulthood.
In Part 48, Andrea and Kendra got married and moved out to live on their own houseboat. They end up quite wealthy as a result of their randomly selected house.
Andrea and Kendra adopted a daughter named Jamie, whom was potty trained by Andrea. The couple wanted an additional alien baby, therefore Andrea was sent to go stargaze but, unfortunately, did not get abducted.
Andrea lives with his wife and daughter in Maple Cove.