My Brother Is a Robeast Voltron: Defender of the Universe : Season 1 Episode 17

The Royal family from Planet Pollux has made a visit to planet doom. Lotor seems to have a particular thing against the planet's prince, Avok. So Avok is sent to the arena where he successfully beats a hiddeous beast. Infuriated, Lotor challenges the man himself and they get into a heated sword fight. But then Lotor spies Avok's sister and little brother standing on the sidelines the sister, Romelle, bears a striking resemblance to Allura. While he's busy gawking at the look-alike, Avok disarms Lotor.