THE grinning man who was filmed holding a cat that had been skinned alive is still being sought by RSPCA in Western Australia.

The footage was given to the animal welfare charity last August, and despite the man's face being clearly visible in images shared with the public, he has not been identified.

RSPCA WA is also appealing for information relating to two other acts of animal cruelty where the offenders remain at large.

On January 26 last year a cow was deliberately shot with an arrow on a property on Old Bunbury Road, Lake Clifton, and had to be put down as a result.

An emaciated, flea ridden puppy was found inside a backpack where it had been dumped on a vacant block of land on the corner of Porter and Baird street, Collie on June 14 last year.

Chief inspector Amanda Swift says the charity relies heavily on information from the community and warns that the offenders could still be harming other animals.

RSPCA WA are continuing their '20for20' appeal, asking each resident in the state to donate $20 so the charity can employ a total of 20 inspectors.

There are currently 11 inspectors in the state, who would each look after an area the size of Victoria if WA was divided equally between them.

The maximum penalties for animal cruelty in WA include up to five years in prison, a $50,000 fine, and possible prohibition from contact with animals.