Packer is a red semi-trailer truck. Packer is owned by Farmer Pickles and has two trailers, a flatbed and a covered trailer resembling a 1988 Freightliner FL50.
Packer is friends with Scrambler and Dodger, who first befriended each other in The Three Musketrucks. Packer also returned as a recurring character in Ready, Steady, Build!. Packer speaks with a muffled Lancashire accent in the UK dub and a Southern drawl in the US dub.