The season two finale of Star Trek: Discovery has jumped the show into a new era, leaving a number of characters behind. While star Sonequa Martin-Green has talked about the new opportunities the change in the show provides, she has also expressed how she is sad to say goodbye to some of the actors who will not be joining the show in the 33rd century. Some of these actors have taken to social media to express their own goodbyes.

Anson Mount

Anson Mount joined the show as a series regular in the second season, as the captain of the USS Discovery. The season finale saw Pike return to his command on the Enterprise and on the night “Such Sweet Sorrow, Part 2” aired, Mount took to Twitter to thank CBS as well as the producers, writers, cast, and crew of the show and the fans, noting: “It’s been a hell of a ride. Thank you for letting me take it.”

Tonight’s the night. Thank you to @CBSAllAccess @StarTrek @CBSTVStudios Alex Kurtzman, the entire writing staff, @SonequaMG, the entire cast & crew and, most importantly, TO THE FANS. It’s been a hell of a ride. Thank you for letting me take it. pic.twitter.com/Qxfpv0vrdp — Anson Mount (@ansonmount) April 18, 2019

Ethan Peck

Joining Mount on the USS Enterprise was Ethan Peck as Spock, who appeared in the latter half of the second season. The actor posted a picture of a camera test of himself as the shaved Spock from his last day at work on the series, noting “what a wild conclusion to a very surreal journey.”

Rebecca Romijn

Rounding out the Enterprise crew was Rebecca Romijn (Una/Number One), who simply posted her “Twenty-one phaser salute” to the finale.

Mary Chieffo

Mary Chieffo has been a recurring guest star on the show since the series premiere “The Vulcan Hello.” She has been the primary Klingon character on Discovery throughout both seasons, and had a key role in the season two finale. Yesterday the actress took to Twitter to say “Parting IS such sweet sorrow” and noting, about her time on the series, that it was a “true honor to breathe life into this character. qathlo’ L’Rell, for all you’ve taught me. I hope we meet again someday.” For those who don’t speak Klingon qathlo’ is “thank you.”

Parting IS such sweet sorrow. From Battle-Deck Commander working from the shadows to Chancellor of the Empire leading the charge into battle, it has been a true honor to breathe life into this character. qathlo’ L’Rell, for all you’ve taught me. I hope we meet again someday. pic.twitter.com/PnK2Y5mUnZ — Mary Chieffo (@marythechief) April 20, 2019

Jayne Brook

Actress Jayne brook was another fan favorite recurring guest star in both seasons as Admiral Katrina Cornwell. The second season finale saw Cornwell sacrifice herself to save the Enterprise. She also took to social media to post her farewell, including a message to the fans saying “thank you from my heart to yours.”

Alan Van Sprang

Alan Van Sprang played the second season’s main antagonist as Section 31’s Leland and then the Control-possessed version of Leland. He first appeared in a bonus scene for the season one finale, recruiting Michelle Yeoh’s Georgiou into Section 31. The second season finale featured Georgiou defeating Leland/Control. On Twitter the actor sent his thanks out to the cast and crew “for an amazing journey to the stars and back.”

Thank you so much @CBSTVStudios @startrekcbs @StarTrek @SonequaMG and all of the cast and crew for an amazing journey to the stars and back.

I love you all.#StarTrek — Alan Van Sprang (@alanvansprang) April 19, 2019

Gone forever?

While these characters may not have jumped into the 33rd century with the crew of the USS Discovery, they may still be seen again on the show in flashbacks or possibly scenes set in the 23rd century. And there is always the Section 31 series, which may be set in the 23rd century, where Shazad Latif’s character was left behind and in charge of the organization. And with all the fan interest in a series set on Pike’s Enterprise, there are always possibilities.

Star Trek: Discovery is available exclusively in the USA on CBS All Access. It airs in Canada on Space and streams on CraveTV. It is available on Netflix everywhere else.

Keep up with all the Star Trek: Discovery news at TrekMovie.