Fair rating?Dragon Ball Z· Season 4 · Episode 23
The Secret of Doctor Gero
No. 20's Defiant Smile… The Secret of Doctor GeroIn his first fight as a Super Saiyan, Vegeta takes control of the battlefield.
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#21In Season 4of 32 rated episodes
#218All-timeof 229 rated episodes
−0.6vs season avgSeason 4 averages 7.6
1992First airedMarch 11, 1992
Guest stars
Mayumi Tanakaas Yajirobe (voice)
Kouji Yadaas Artificial Human No. 20 / Dr. Gero (voice)
Yukitoshi Horias Artificial Human No. 19 (voice)