The judge set a million dollar bond for both on Monday, the report stated.
Investigators believe it is Graves' body that was stashed in freezer, but the Cuyahoga County medical examiner has not yet confirmed the corpse's identity and cause of death, the prosecutor's office said.
Youngstown prosecutor Dana Lantz said that around the time police believe Ms Graves vanished, Layton moved in with Novoa and began using Ms Graves's vehicle, phone and credit cards and taking care of her dog. Another suspect, Katrina Layton, 34, was charged with abuse of a corpse and obstruction of justice.
Youngstown Police are still investigating, but they believe the woman died in Youngstown, not Campbell.
The Campbell homeowners who took the freezer into their possession say they have been friends with Novoa for five years and are "shocked".
Ms Graves, who was 28, was last seen on Christmas Day in 2016, according to the Ohio Attorney General Missing Persons records.More news: Jesus Navas announced as a Sevilla player by being kidnapped, obviously
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The alleged ruse was up when a friend became suspicious, discovered the remains and called authorities. You can't replace a spirit like hers. "She is loved by so many", Graves sister told WFMJ-TV.
She said it was unlike her sister to be gone for so long without contacting them.
Two people have been arrested amid gruesome claims that an imposter moved into the dead woman's home, used her credit cards and cared for her dog.
Lt. Bobovnik said no one has been charged with murder yet because there is still no cause of death.
"Basically, assumed her life and her belongings", Lantz said.