Any Star Trek alum in any role (so science fiction and fantasy is acceptable) that takes place AFTER their final appearance on Star Trek.
so, wait, does that mean we can only do stuff post The Undiscovered Country and post Nemesis or post Turnabout Intruder and post All Good Things?
WHENEVER an actor's or actress' last appearance on anything Star Trek was, whoever that actor or actress is, any role afterward. For example, Nimoy's last time on Trek was the 2009 movie, Shatner was Generations, Takei was The Undiscovered Country, Meany never returned to Trek after DS9 ended, Ryan never returned to Trek after Voyager ended, etc.
Rene Auberjonois His last Trek-related role was in ENT 'Oasis' in 2002, Boston Legal premiered in 2004. - edit - New idea! Chris Hemsworth Played George Kirk in Star Trek (2009) and Thor opened just last week.
I have a new idea, but can't use it 'cause I can't find screencaps. If anyone knows were I can get screencaps of Scott Bakula dressed as Captain American in MoaCA 'And Then the Bill Comes', let me know.
Oops. Oh well. Whenever the last time a Trek actor played the role in a legitimate live action production (so no fan films, no computer game voice overs), any role after that is fair game. Of course, who can name anything Takei actually did post-Star Trek besides Heroes? Was Homeboys in Outer Space pre- or post-Voyager?