Whoa, Bill and Ted's excellent adventures have brought them into fatherhood.

"Bill & Ted Face the Music," the upcoming new entry in the franchise starring Keanu Reeves and Alex Winter, has cast the onetime slacker duo's daughters.

Brigette Lundy-Paine ("Atypical") will play Billie Logan, the daughter of Theodore "Ted" Logan (Reeves). Samara Weaving ("Three Billboards Outside Ebbing, Missouri") will play Thea Preston, daughter of William "Bill" S. Preston Esq. (Winter).

Awww, they BFFs named their kids after each other!

Following 1989’s "Bill & Ted’s Excellent Adventure" and the 1991 sequel "Bill & Ted’s Bogus Journey," the story catches up to the now-middle-aged best friends as they encounter a a visitor from the future. They're warned that only their song can save life as we know it and bring harmony to the universe. Along the way, they will be helped by their families, old friends and a few music legends.