Jason is a fictional character portrayed by Mason Lucero in the TV series ER.
They appear in 1 episodes out of a total of 331 aired
Jason is also portrayed by Shane Johnson, Luis Armand Garcia, Drew Butler, Scott Donovan and Keon Hall.
Episodes1
My Brother's Keeper
episode S4.E16 march 1998Mark finds out Cynthia has moved. Carter's cousin Chase is brought in because of a heroin overdose. Doug and Kerry clash after she found a flaw in his study.