ose id on / Ne pt une . ▁She ▁appears ▁in ▁one ▁scene ▁of ▁The ▁Last ▁Olymp ian ▁and ▁is ▁described ▁as ▁a ▁beautiful ▁god dess ▁we aring ▁arm or , ▁with ▁black ▁hair ▁and ▁small ▁horn s ▁like ▁c rab ▁cla ws . ▁ ▁Del ph in / Del ph inus ▁– ▁The ▁god ▁of ▁dol ph ins , ▁and ▁one ▁of ▁P ose id on ' s ▁lie uten ants . ▁He ▁was ▁seen ▁briefly ▁during ▁a ▁war ▁council ▁meeting ▁in ▁P ose id on ' s ▁palace ▁in ▁The ▁Last ▁Olymp ian , ▁in ▁the ▁shape ▁of ▁a ▁dol ph in . ▁ ▁Pala emon ▁– ▁The ▁god ▁of ▁sh arks , ▁and ▁one ▁of ▁P ose id on ' s ▁lie uten ants ▁in ▁the ▁war ▁against ▁Ocean us . ▁ ▁T rit on ▁– ▁A ▁sea ▁god ▁dep icted ▁as ▁a ▁m erman ▁with ▁two ▁fis ht ails . ▁He ▁acts ▁ar rog ant ▁toward ▁Per cy ▁but ▁respect s ▁T ys on . ▁ ▁Dem eter / C eres ▁– ▁The ▁god dess ▁of ▁agricult ure , ▁who ▁appears ▁alongside ▁her ▁daughter ▁Per se phone ▁in ▁The ▁Last ▁Olymp ian , ▁where ▁they ▁particip ate ▁in ▁the ▁battle ▁against ▁the ▁Tit ans . ▁Dem eter ' s ▁cabin ▁in ▁Camp ▁Half - B lo od ▁is ▁Cab in ▁ 4 . ▁In ▁the ▁film ▁adaptation ▁of ▁The ▁Light ning ▁Th ief , ▁Dem eter ▁is ▁played ▁by ▁Stef anie ▁von ▁Pf etten . ▁▁ ▁Per se phone