Lisa Bonet files for divorce from Jason Momoa, following their relationship for eighteen years.

The 56-year-old Bonet, whose legal name is Lilakoi Moon, filed documents to end her marriage 

The filing comes nearly two years after they announced their separation. 

Bonet was a star of “The Cosby Show,” its spinoff “A Different World” 

Momoa is best known for his roles in the “Aquaman" movies and on "Game of Thrones." 

The two met and started dating in 2005 

They did not legally marry until 2017 

It will be at least six months before a judge declares them divorced.