Dende
Race: Namek
Eyes: Black
Hair: None
Skin: Green
Appears in: DBZ and DBGT
Killed by: frieza
Abilities: Bukujutsu, Dragon Ball Formation, Kaifuku & Toomi No Jyutsu.
Dende was saved by Gohan when he was about to be killed by Freiza's henchmen. He then becomes friends with Gohan, Krillin, Bulma and proved to be useful in the battle against Frieza. As he had the ability to heal people who are injured. He was then killed by frieza.
Dodoria
Race: Unknown
Eyes: Black
Hair: None
Skin: Pink
Appears in: DBZ
Killed by: Vegeta
Abilities: Bukujutsu, Eraser Cannon, Renzoku Kikou Ha & Zanzoken.
This is one of Frieza's main henchmen. He has no mercy and is later killed by Vegeta with ease on planet Namek.
Dr Myuu
Race:
Eyes:
Hair: Orange
Skin: Teel
Appears in: DBGT
Killed by:
Abilities: Genious
Dr. Myuu is responsible for creating Bebi. After being killed by his creation (ironic isn't it?), he is sent to hell where he meets Dr. Gero. Together they create another Android 17, who goes to earth and merges with the original 17, creating Super 17.
Drum
Race: Namek
Eyes: Black
Hair: None
Skin: Green/Orange
Appears in: DB
Killed by: Goku
Abilities: Melee, Finger/Eye Lasers
Drum was created by Piccolo Daimoa to kill Tenshinhan. The two are fairly equally matched, but he is easily defeated when Goku arrives on the scene.