Raven and Jonathan Spunkygal: They are Billy's Paternal Uncles Robin Spunkygal Sr.: He's Billy's Paternal Grandpa Eric and Dylan Swanson: They are Billy's Maternal Uncles Georgia and Gregory Swanson: They are Billy's Maternal Grandparents Now, Back in the times when Robin Jr. and Ladonna are 9, they both push their brothers, Raven and Eric down the stairs. and both Robin Jr. and Ladonna were troublemakers when they're younger. Their other brothers, Jonathan and Dylan, told their dads about what happened. So, Robin Sr, Robin Jr's Father, grounded Robin Jr, and he even divorced Grandma Spunkygal for telling Robin Jr to push Raven down the stairs, and took his kids with him. And as for Ladonna's Dad, Gregory, He grounded Ladonna for two weeks.