Dree Andrea cowrote the dialogues for the Dutch Bert & Ernie albums. She also performed the voices of Aunt Coleta and Mrs. Karperzooi.
Aunt Coleta's real name is Cornelia. She is married to Uncle Rudolf. At one point in their relationship, she left him for a few years. She lovingly refers to him as "Rudi-pudi". She plays the violin and she sings, accompanied by Rudolf on the grand piano.
Mrs. Karperzooi lives on the first floor of Uncle Rudolf's house on Brestunnelweg 5. She has a dog named Bobby. She is often annoyed with Uncle Rudolf playing Sesamstraat records all day long.
Dree Andrea is a self-taught movie maker.