Dragon Ball Z - Season 4 - Eps 23: The Secret of Dr. Gero
In his first fight as a Super Saiyan, Vegeta takes control of the battlefield and defeats Android 19 in convincing fashion! Unwilling to share 19’s fate, Android 20 runs for cover in the mountains!
About Dragon Ball Z

Title: Dragon Ball Z
First Air Date: 1989-04-26
Last Air Date: 1996-01-31
Status: Ended
Rating: 8.347/10 (from 4570 votes)
Language: JA
Seasons: 10
Total Episodes: 291
Network: Fuji TV
Genres: Animation, Sci-Fi & Fantasy, Action & Adventure
Production Companies: Fuji Television Network, Mini Art, Toei Animation, Fizz Sound Creation, Saban Entertainment
Synopsis
After years of peace since the defeat of Piccolo Daimaoh, Goku now lives peacefully with his wife, Chi-Chi, and their son, Gohan. But everything changes when a mysterious warrior called Raditz arrives on Earth, revealing that he is Goku's brother and that they both belong to the warrior race of the Saiyans, a brutal people who conquer planets.
Cast

Masako Nozawa
Son Goku / Son Gohan / Son Goten (voice)

Ryo Horikawa
Vegeta (voice)

Toshio Furukawa
Piccolo (voice)

Mayumi Tanaka
Krillin / Uranai Baba (voice)

Naoki Tatsuta
Oolong / Karin (voice)

Ryusei Nakao
Freeza (voice)

Joji Yanami
Dr. Briefs (voice)

Naoko Watanabe
Puar / Chi-Chi (voice)

Hirotaka Suzuoki
Tien Shinhan (voice)

Miki Ito
Android 18 (voice)