It was recently revealed that the 50-year-old and writing partner Stephen Merchant, 36, had added extra fight scenes to their new comedy Life's Too Short because they found it funny to watch Warwick brawling.
But yesterday Ricky sent The Sun a picture and letter, which read: 'Dear Sun, Ricky Gervais here. I object to your claims of dwarf cruelty on the set of my new sitcom.
'I take their welfare very seriously and I even keep them in protective cases when they are not fighting.'
Davis, 41 plays an entertainment agency boss who exploits his other dwarf clients in the programme.
Life's Too Short is set to air in the UK later this year.