Question: who is the little boy in pet sematary
Answer: Miko John Hughes ( born February 22 , 1986 ) is an American actor known for his film roles , as a child , as Gage Creed in Pet Sematary ( 1989 ) , as astronaut Jim Lovell 's son Jeffrey in Apollo 13 ( 1995 ) , as a child on the autistic spectrum named Simon opposite Bruce Willis in Mercury Rising ( 1998 ) , and as Dylan ( Heather Langenkamp 's son ) in Wes Craven 's New Nightmare ( 1994 ) , as well as his recurring role as Aaron on Full House from 1990 to 1995 .