Gohan

1. killed by the androids

2. killed when Majin Buu destroyed earth

Vegita

1. killed by Freeza

2. sacrificed himself to kill Majin Buu

3. killed by Gokou (Majin Vegita)

Piccolo

1. killed by Nappa

2. killed when Majin Buu destroyed the earth

Trunks

1. killed by Cell

2. killed when Majin Buu destroyed the earth

Goten

1. killed when Majin Buu destroyed the earth

Yamcha

1. killed by a Saibamen

2. eaten by Majin Buu

Chaozu

1. blew up on Nappa

2. killed when Majin Buu destroyed the earth

Tenshinhan

1. killed while fighting Nappa

2. killed when Majin Buu destroyed the earth

Raditsu

1. killed by Piccolo while Gokou held him

Nappa

1. killed by Vegita in the saiyan saga

2. killed by Vegita again in DB: GT

Ginyu Force

1. Jeice-Killed by Vegeta

2. Burter-Killed by Vegeta

3. Guldo-Killed by Vegeta

4. Recoome-Killed by Vegeta

5. Captain Ginyu-Technically Killed By Gokou (when he Changed him To A Frog)

Freeza

1. killed by Trunks

2. killed by Gohan (movie 12)

3. killed by Gokou (DBGT)

Cell

1. killed by Gohan

Kuririn

1. killed during a tenkaichi budokia competition

2. killed by Freeza

3. killed when Majin Buu destroyed the earth