Guest Stars Jordan Claire Robbins as Grace Justin H. Min as Ben Hargreeves Sheila McCarthy as Agnes Rofa Rainbow Sun Francks as Chuck Beeman Ashley Madekwe as Detective Eudora Patch Peter Outerbridge as Conductor Co Starring Eden Cupid as Young Allison Cameron Brodeur as Young Luther Dante Albidone as Young Klaus T.J. McGibbon as Young Vanya Blake Talabis as Young Diego Ethan Hwang as Young Ben Zachary Bennett as Lance Biggs Emily Piggford as Helen