Coll ▁in ▁July . ▁Bian ca ▁Z eb o at ▁and ▁lif egu ard ▁Sh a una ▁Brad ley , ▁played ▁by ▁K yl ie ▁Watson , ▁were ▁introduced ▁in ▁August . ▁Science ▁teacher ▁Harry ▁Reyn olds , ▁played ▁by ▁Justin ▁Mel vey ▁arrived ▁in ▁September . ▁Anna ▁H ruby ▁and ▁Stephen ▁James ▁King ▁joined ▁the ▁cast ▁as ▁acting ▁principal ▁Jud ith ▁A ck ro yd ▁and ▁her ▁son , ▁Edward ▁D ung lass , ▁respectively ▁in ▁October . ▁ ▁Nick ▁Smith ▁ <0x09> ▁Nick ▁Smith ▁ ▁first ▁appeared ▁during ▁the ▁episode ▁air ing ▁on ▁ 1 8 ▁March ▁ 1 9 9 9 , ▁played ▁by ▁Matt ▁Gu are z ▁in ▁a ▁guest ▁role ▁and ▁then ▁returned ▁as ▁a ▁regular ▁character ▁in ▁ 2 0 0 0 ▁played ▁by ▁Chris ▁E gan ▁and ▁depart ed ▁on ▁ 9 ▁September ▁ 2 0 0 3 . ▁A aron ▁P ucker idge ▁also ▁played ▁Nick ▁in ▁flash back s ▁in ▁ 2 0 0 3 . ▁For ▁his ▁port ray al ▁of ▁Nick , ▁E gan ▁was ▁nominated ▁for ▁" Best ▁New ▁Male ▁Tal ent " ▁at ▁the ▁Log ie ▁Awards ▁in ▁ 2 0 0 1 . ▁ ▁Ken ▁Smith ▁ ▁P eta ▁Jan os si ▁ ▁P eta ▁Jan os si , ▁port rayed ▁by ▁Ale et za ▁Wood ▁deb uted ▁on ▁the ▁series ▁on ▁ 2 7 ▁May ▁ 1 9 9 9 ▁and ▁depart ed ▁on ▁ 1 4 ▁July ▁ 2 0 0 0 . ▁Wood ▁won ▁the ▁role