The late actor and her husband adopted both of their kids after dealing with fertility difficulties.

After Alley and Stevenson got divorced in 1997, they shared custody while raising their children.

Acting achievements aside, Alley took great pride in her parenting skills.

Kirstie Alley smiling

“My best quality is that I’m a good mother,” she informedPeoplein 2006.

In 2010, Ellen DeGeneres observed the strong friendship between Alley and her then-teenage children.

Alley noted that she preferred discussions over discipline.

William True Stevenson and Kirstie Alley smiling

Now adults, here’s what we know about Alley’s son and daughter.

The actor also observed that her children were interested in animals and environmental stewardship.

Alley was passionate about animals, and she had a lot of pets, including 14 lemurs.

Kirstie Alley and her daughter Lillie smiling slightly

That same year, when he was 17, True and his girlfriend, Lauren Sergeant, got engaged.

However, for unknown reasons, the couple later decided to split up.

“He’s just an excellent dad, really hands-on,” she added.

As evidenced by Lillie’sInstagramfeed, her childhood affinity for the water continues into adulthood.

Like Alley, Lillie is an animal lover, although she prefers canines to primates.

Similar to True, Lillie also experienced a serious romance when she was a teenager.

Trela was also one of True’s close friends.

Now married, Lillie and Graham work together as partners in their furniture-building business Parker Burkhart.