I'm afraid that all of the parts have already been casted.
You can watch Percy Jackson movies at the cinema if there are old movies showing or you can buy or rent a copy of The Lightning Thief.
The three old ladies in Percy Jackson were the fates.
Twilight New Moon The Perfect Man Percy Jackson and the Olympians
17
Percy Jackson is 16 years old in "The Lost Hero."
16
Silena's age is never revealed in the Percy Jackson book series.She is played by 19-year-old Zoe Aggeliki in the film Percy Jackson and the Lightning Thief.
In the Percy Jackson and the Olympians films, Percy Jackson is played by actor Logan Lerman (born January 19, 1992). In the first movie, The Lightning Thief (2010), Percy is 16 years old -- Lerman was 17 when his scenes were filmed in early 2009.
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12
Logan Lerman is 18 years old.
Twelve, I believe.