The Look Who’s Talking and Cheers actress handed away on Monday on the age of 71 following a brief battle with most cancers. After her youngsters introduced the news, Travolta wrote a brief tribute to his frequent co-star and fellow Scientologist on Instagram. “Kirstie was one of the most special relationships I’ve ever had,” he wrote alongside a photograph of Alley and a picture of them collectively. “I love you Kirstie. I know we will see each other again.”. Travolta starred alongside Alley in 1989’s Look Who’s Talking and the sequels Look Who’s Talking Too and Look Who’s Talking Now.