Hadley Sadler is a fictional character portrayed by Mallory Bechtel in the TV series Law & Order: Special Victims Unit.
In the first episode they appeared in, titled Send in the Clowns (season 19), they were 18 years old.
They appear in 1 episodes out of a total of 551 aired so far
Episodes1
Send in the Clowns
episode S19.E17 march 2018The cops search for a masked man when a student vanishes during a field trip to New York City.