Mild talk of crushes between characters. Nothing more.
Some nude male sculptures are showcased in the first and second episode.
Percy urinates on a rock. Nothing shown.
A teenage boy is shown in his boxer shorts as he gets dressed.
A man makes a double entendre in reference to Poseidon having offspring by saying he "can't keep his trident to himself."
Violence & Gore
Mild
A plot point revolves around teenage characters cutting off a monster's head and shipping it in the mail. But you cannot see it happen.
Since the show is based on a series of books aimed at pre-teens / teenagers, violence is quite infrequent and none of it is graphic or bloody.
Profanity
None
Occasional religious exclamations such as "oh my god."
Alcohol, Drugs & Smoking
None
Hermes sips a glass of alcohol.
Dionysus is the God of Wine and is forbidden from drinking of his own free will. He tries to convince Percy to grab him a bottle of wine but is stopped.