Description Like most family dogs, Spike is a friendly, loyal mutt whose main interests are food and his "wife" Fifi. Stu and Didi consider him a dumb but pleasant member of the family. Yet Spike is often more aware than they are of what the Rugrats are up to. He and Tommy share an intrepid interest in, and curiosity about, the world around them. When he's not rescuing Tommy from impending doom, Spike often takes the babies on magnificent adventures through the neighborhood --- adventures which Stu and Didi are never aware of. - Rugrats Description from Klasky Csupo

Poor Spike! As dogs age seven years for every year a person does, Tommy's faithful pooch is now AT LEAST 70! Quite a bit slower than the spry young pup we knew from the original Rugrats series, Spike spends most of his time eating, sleeping and passing wind these days. Still, Tommy and Dil love him, and often sneak him treats when their parents aren't looking. Though he may not move as fast as he once did, Spike is still devoted to the Pickles family to the end. - All Grown Up! Description from Klasky Csupo

Summary Spike is Tommy's best "animal" friend. The dog is currently "married" to Fifi, a purple-and-white poodle. He often plays with Tommy and Dil. Spike is usually seen inside or near the Pickles' house. Spike has helped the Rugrats through more adventures than he can count (if he could count, that is). Spike doesn't have any magical powers, and he doesn't seem to do anything all that amazing, but looks can be deceiving. Spike watches over the babies more closely than Stu, Didi, or Lou. He is always willing to get his paws in the action when it comes to adventures.

Looks Spike is mostly an orange-brown color. He has two gray spots on his body and wears a red collar with a gold round dog tag. In the 2021 CGI series, the name "SPIKE" is clearly visible on the dog tag.

Appearances Spike appears in most episodes of Rugrats, and is classified as a main protagonist of the series. His first appearance was in "Tommy Pickles and the Great White Thing".