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Harlan Ellison also wrote the scripts for "The Starlost" (credited as Cordwainer Bird).
It's a Canadian series about passengers who have forgotten that they are on a spaceship.
The protagonist Devon is portrayed by Keir Dullea.

https://en.wikipedia.org/wiki/The_Starlost
>  Devon finds out that the Cypress Corners elders have been deliberately manipulating the local computer terminal, which they call "The Voice of The Creator".

First episode:
https://youtube.com/watch?v=ars0DCQijqU

Harlan may be a rabbit reference.
https://www.behindthename.com/name/harlan
>  From a surname that was from a place name meaning "hare land" in Old English.

Ellison means son of Ellis, a derivative of Elijah.
https://surnames.behindthename.com/name/ellison
>  Patronymic form of the English name Ellis, from the medieval given name Elis, a vernacular form of Elijah.

https://www.behindthename.com/name/elijah
>  From the Hebrew name אֱלִיָּהוּ ('Eliyyahu) meaning "my God is Yahweh", derived from the elements אֵל ('el) and יָה (yah)

Ellis may be an obscure reference to Alice.
https://forebears.io/forenames/ellis
>  Ellis is found in the 17th C as a woman's name, but this is a corruption of Alice

Perhaps that is why there is a company called Alice Ellis Casting.
https://elliscasting.com
https://youtube.com/watch?v=sfaoOgH2PHw

And why Harlan Ellison published an anthology titled "Ellison Wonderland".
https://www.goodreads.com/book/show/216182.Ellison_Wonderland