William Shatner wont be beaming his way onto TV or film as Captain Kirk anymore. And thats his final word on the final frontier, he says.

In a Twitter chat with fans this week, the original Star Trek icon firmly shot down the possibility of him appearing in any new production.

A Twitter user asked Shatner if hed consider a series focused on Kirk, now that Patrick Stewart is starring in CBS All Accesss Star Trek: Picard.

No, Shatner responded . I think Kirks story is pretty well played out at this point.

In case any loyalists still held out hope, Shatner went on to rebuff another query about an offshoot of the franchise.

What was any different about my statement on Kirk that I havent said before? I dont do cameos (that one stretches back to 2008 & JJ) Kirks story is well told out of any other captains story. Kirk died in Generations. What is really left? Adventures in the ribbon?

One Trekkie tried to calm Shatners apparent annoyance by telling the actor that fans were merely inquiring because they love and miss him . Please dont be angry with them, the person wrote.

Shatner, 88, said half-kiddingly last year hed be up to play an older , pudgier Kirk if Quentin Tarantinos proposed Star Trek were greenlighted, but it looks like the actor has now changed his mind about future productions. (Tarantino appears to be backing away from that project anyway.)