Guest Stars Ted Levine as Chief Thomas Byrnes Martin McCreadie as Captain Doyle Brittany Marie Batchelder as Joanna Crawford Emily Barber as Violet Hayward Georgia Lowe as Milly Matt Letscher as William Randolph Hearst Michael McElhatton as Dr. Markoe Lara Pulver as Karen Stratton Frederick Schmidt as Goo Goo Knox James Faulkner as Cornelius Vanderbilt Co Starring Dominic Herman-Day as Stevie Taggert Peter Coonan as Ding Dong Gavin O'Connor as Murphy Lucas Bond as Paulie Holli Dempsey as Maisie Sianad Gregory as Nanny #2 Felicity Houlbrooke as Vanderbilt Nanny Henry McGrath as Stablehand Grace Quigley as Nanny #1 Kemi Durosinmi as Nanny #3 Justin McCarron as Vanderbilt Butler David Stoller as Officer