A woman whose cat was decapitated and its blood allegedly used to scrawl a threatening message on a garage door says police may have charged the wrong man over the incident.

A second man has been charged in the case, in which a cat was decapitated at Arundel on Queensland's Gold Coast in the early hours of June 17.

The words "Whers my money? Tik tok!" were scrawled in red on the garage door.

A burnt-out car was also found in the driveway and the cat's head was left on top of the house's front door.

Jordan Christie, 19, was remanded in custody after appearing in court at Southport this morning on charges of injuring animals by night, wilful damage and arson.

Christie will appear in court again for a bail application next Tuesday.

A 24-year-old man was also detained over the incident.

He was charged with extortion and the misuse of telecommunications devices and will appear in court again in August.

The owner of the cat, Maddy White, said she was not convinced a man charged over the incident was responsible.

Outside the court, Ms White said she knew the accused and that police may have the wrong man.

Mady White, the owner of a cat that was decapitated. ( ABC News: Courtney Wilson )

"I don't believe he's capable of something like that - I believe it's probably someone else - but I don't know who," she said.

Ms White said she had only had the animal for six months.

"I adopted her off a friend of mine who was unable to take care of her - she was lovely and cuddly and it's really sad now that she's gone," she said.

Ms White said she received a great deal of support from the community.

Detective Acting Inspector Greg Aubort said those charges against the 24-year-old related to incidents leading up to last week's alleged attack.

He said the investigation was continuing.

"There are incidents of contact between certain parties - we are exploring all avenues of those contacts and what they actually mean in the lead-up to the incident," he said.

"There are no doubt inconsistencies in versions of several people that we have interviewed.

"That is an issue that's ongoing and we will address that as the investigation goes on.

"There are many leads to run out - there's a lot of information to sift through."

Police said the residents of the home did not own the cat.