The Star Wars star offered a heartfelt statement on Tuesday in the wake of Fisher's death, singing the actress' praises and offering condolences to her family.
"Carrie was one-of-a-kind... brilliant, original. Funny and emotionally fearless," he said in a statement to ET. "She lived her life, bravely... My thoughts are with her daughter, Billie [Lourd], her mother, Debbie [Reynolds], her brother, Todd [Fisher], and her many friends. We will all miss her."
"It is with a very deep sadness that Billie Lourd confirms that her beloved mother Carrie Fisher passed away at 8:55 this morning,” family spokesperson Simon Halls said in a statement to ET on behalf of Fisher’s daughter, Billie Lourd, on Tuesday. “She was loved by the world and she will be missed profoundly. Our entire family thanks you for your thoughts and prayers."
In Fisher's final memoir, The Princess Diarist, published in November, the actress revealed that she began an affair with the then-33-year-old Ford after a birthday party for George Lucas, and their fling continued for three months during filming. "I looked over at Harrison. A hero’s face… How could you ask such a shining specimen of a man to be satisfied with the likes of me?" Fisher wrote.
Following her death on Tuesday, Mark Hamill was among the first of Fisher's Star Wars family to tweet about the news. He shared a black-and-white throwback photo of the pair, dressed in character as Luke Skywalker and Princess Leia, respectively, with the caption: "No words. #Devastated."
As for Fisher's involvement in Star Wars: Episode IX, while the film is still in pre-production according to IMDB, fans had expected to see Leia again on the big screen. Hamill is the only star currently listed as a rumored cast member. ET has reached out to Disney for comment.