Colonel Worf – Star Trek: The Undiscovered Country
There one major problem with recasting Worf, in the Kelvin timeline he likely doesn’t join Starfleet.
Without the events of Star Trek VI The Undiscovered Country and the subsequent massacre at Khitomer, and the cold relations between the Federation and the Klingon Empire it seems highly unlikely that Worf would have become the first Klingon to join Starfleet. In fact it’s entirely possible that the son of Mogh never became an officer and that his family was never discredited,.
Therefore while it’s possible Worf still exists in the universe he would more likely be cast as one of the recurring villains of the series and not one of the bridge crew. As a more minor character in the grand scheme of things and given the continued interest Michael Dorn has in the character the recasting of Worf in this case would be Michael Dorn as Worf.
Obviously this gives the actor a chance to somewhat reinvent the character, and we already know he’s capable of playing the strong-willed Klingon warrior so what better choice then the man who played his own grandfather in the Undiscovered Country.
LONDON, ENGLAND – OCTOBER 09: Actor David Oyelowo attends the ‘Queen Of Katwe’ Virgin Atlantic Gala screening during the 60th BFI London Film Festival at Odeon Leicester Square on October 9, 2016 in London, England. (Photo by John Phillips/Getty Images for BFI)
Honourable Mention: David Oyelowo
Though not very well-known, David Oyelowa (pronounced Oh-Yellow-Oh) is, in the finest tradition of Star Trek actors, a classically trained stage actor.
Though he has picked up some higher profile work in recent years including his most notable work as a voice actor, David was first known to me as Edward Ekubo in the 2013 movie Complicit where he plays an MI5 agent attempting to stop a terror attack similar to the London bombings in 2005.
He is a fully capable actor and would make an outstanding Lieutenant Worf in what could serve as a break out role for Oyelowa.