Over the last near-50 years, we've had some wonderful guest actors in Star Trek. Which are the stand outs for you? You are allowed to have one off guest shot actors, recurring actors, or even guest stars from the films
For me, some of the highlights are:
James Cromwell- Zefram Cochrane (as well as several other guest characters in TNG and DS9)
Brad Dourif- Lon Suder (Meld, VOY)
Tony Todd- various roles (Kurn, Hirogen in 'Prey', VOY, but especially as the older Jake Sisko in The Visitor, DS9)
Vaughn Armstrong- various roles , one of his best known being Admiral Forrest on ENT
Jeffrey Combs- Weyoun, Brunt, Penk, Krem, Shran, Tiron
Joel Grey- Caylem, 'Resistance' VOY
Christopher Plummer- Chang, TUC
James Sloyan- various characters (Admiral Jarok, TNG, Dr Mora Pol, DS9, Dr Jetrel, VOY, etc)
Benedict Cumberbatch- Khan, Into Darkness (Great actor)
Marc Alaimo- Gul Dukat, DS9 (as well as many other guest roles on TNG)
David Warner- St John Talbot, STV:The Final Frontier; Gorkon, TUC; Gul Madred, 'Chain of Command'
For me, some of the highlights are:
James Cromwell- Zefram Cochrane (as well as several other guest characters in TNG and DS9)
Brad Dourif- Lon Suder (Meld, VOY)
Tony Todd- various roles (Kurn, Hirogen in 'Prey', VOY, but especially as the older Jake Sisko in The Visitor, DS9)
Vaughn Armstrong- various roles , one of his best known being Admiral Forrest on ENT
Jeffrey Combs- Weyoun, Brunt, Penk, Krem, Shran, Tiron
Joel Grey- Caylem, 'Resistance' VOY
Christopher Plummer- Chang, TUC
James Sloyan- various characters (Admiral Jarok, TNG, Dr Mora Pol, DS9, Dr Jetrel, VOY, etc)
Benedict Cumberbatch- Khan, Into Darkness (Great actor)
Marc Alaimo- Gul Dukat, DS9 (as well as many other guest roles on TNG)
David Warner- St John Talbot, STV:The Final Frontier; Gorkon, TUC; Gul Madred, 'Chain of Command'