Danny O'Day is Alan Harper's ventriloquist doll. Danny often wears smaller versions of the clothes Alan is wearing (including pyjamas). In his latest appearance, when Alan and Charlie get kicked out of the Malibu Beach House, Danny comes along with Alan. When they are in the hotel, Alan, through Danny, asks to order and watch some porn, causing Charlie to throw Danny out of the 30 story window. Alan is later seen fixing the dummy near the end of the episode and the dummy tells Charlie, "Bite me."