Goku:
1. Killed by Piccolo while Holding Radditz.
2. Dies of Heart Virus.
3. Killed after Cell teleported.Gohan:
1. Killed by Android (AH) #17.
2. Killed when Majin Buu destroyed Earth.
Goten:
1. Killed when Majin Buu destroyed Earth.Vegeta:
1. Killed by Frieza.
2. Sacrificed himself to kill Majin Buu.Trunks:
1. Killed by Cell.
2. Killed when Majin Buu destroyed Earth.Piccolo:
Kuririn (Krillin):
1. Killed in a Tenkaichi Budoukai competition.
2. Killed by Frieza on Planet Namek.
3. Killed by Super 17 in DBGT after turning him into a zombie.Tenshinhan (Tien):
1. Killed by Nappa.
2. Killed when Majin Buu destroyed Earth.
3. Killed by Android in Future Timeline.Chaouzu:
1. Blew up on Nappa.
2. Killed when Majin Buu destroyed Earth.
3. Killed by Piccolo Daimao.
4. Killed by Androids in Future Trunks Timeline.Yamcha:
1. Killed by Nappa.
2. Eaten by Majin Buu.Chi-Chi:
1. Squashed by Majin Buu while an egg or cookie (not sure).
Bad Guys
Brolly #1:
1. Blew up with Paragus in the space pod he blew up.
Brolly #2:
1. Died in Movie #8 from Goku, Gohan, Vegeta, Future Trunks, and
Piccolo.
2. Died in Movie #10 from Goten's and Gohan's Kamehameha.
3. Died in Movie #11 from Chibi Trunks (non-future) & Goten.
Radditz:
Nappa:
1. Killed by Vegeta when paralyzed.
2. Killed by Vegeta again in DBGT.Ginyu Force:
1. Jeice, Burter, Recoome, & Guldo killed by Vegeta.Frieza:
1. Brutally beaten by Goku.
2. Killed by Trunks when Cyborg formed.
3. Killed by Gohan for good in Movie #12.
Garlic Jr.
1. Brought into the Dead Zone by young 4 year old Gohan.
2. Totally stuck in Dead Zone by Gohan again & lost power from dead Makioh Star.
Android #16
1. Died from Cell.Android #17
1. Absorbed by Cell to make Perfect Cell.Android #18
1. Absorbed by Cell to make Perfect Cell.Android #19
1. Defeated by SSJ Vegeta.
Dr. Gero/ Android #20
1. Killed by Android (AH) #17.