Ella Blake (Lily Pilblad / Emily Meade) is Rachel's daughter and Olivia's niece. Diane Broyles (Karen Holness) is Phillip Broyles' (ex-)wife, and the mother of his two children--a son named Christopher and a daughter. While in our universe, Diane has left Phillip because of his obsession with his work, in the parallel universe, the Broyles were still happily married until the alternate Phillip was killed.
Broyles
Phillip