“Heartstopper” Season 2 is in production with four new actors joining the cast.Leila Khan has joined as Sahar Zahid, a Higgs school student; Jack Barton plays David Nelson, Nick’s older brother; Bradley Riches takes on the role of James McEwan, a Truham school student; and Nima Taleghani plays Mr Farouk, a Truham school teacher.Newcomer Khan won the role of Sahar after a nation-wide open casting call. This is her first professional acting role.