Alvin is a new neighbor with an English accent with the "gloomy old house" next door filled with animals including a piranha-keet (part piranha and parakeet) and archaeological and excavation objects including the skeleton of a mastodon, a sarcophagus with a mummy inside it and other rare treasures of interest.
Alvin is a short and stout caveman with fair skin, thick black eyebrows, black eyes, a big nose, droopy eyelids with a monocle over his eye and a bald head. He wears a mahogany-brown short-sleeved loin-cloth with a collar and a green tie.
- "Alvin Brickrock Presents" - (only appearance)
- Alvin Brickrock is a spoof of famed and legendary director and mystery host, Alfred Hitchcock.