I know you were speaking tongue-in-cheek.

Esperanto has native speakers. Shatner is not one of them.

https://en.wikipedia.org/wiki/Native_Esperanto_speakers

> Native Esperanto speakers (Esperanto: denaskuloj [denasˈkuloi̯] or denaskaj esperantistoj [deˈnaskai̯ esperanˈtistoi̯]) are people who have acquired Esperanto as one of their native languages. As of 1996, there were 350 or so attested cases of families with native Esperanto speakers.[1][2] Estimates from associations indicate that there were around 1,000 Esperanto-speaking families, involving perhaps 2,000 children in 2004. ...

> some families have passed Esperanto on to their children over several generations.