Dozer (played by Anthony Ray Parker) is the "operator" of the Nebuchadnezzar, the only hovercraft that appears in the first movie of the Matrix series.
In the movie, both Dozer and his younger brother Tank are said to have been born in the real world, in Zion and is therefore unable to enter The Matrix. He acts as the pilot and co-ordinator of the Nebuchadnezzar and makes moonshine in his spare time. Dozer is slain when Cypher kills him with a lightning gun and betrays the crew.
Dozer was married to Cas and had two young children in Zion. Also living in Zion was his sister Zee. After his death, Zee's husband Link took the job of operator of the Nebuchadnezzar in respect of Dozer's wishes.