His appearance changes slightly from his first appearance to his latest appearance ("Isabella and the Temple of Sap"), in the fact that his small teeth are gone and he does not look as scruffy. This could possibly be his disguise from a "mindless pet" to "agent mode", as is the case with Perry the Platypus, where his eyes stare in opposite directions.
He is the only agent (that is named) to have a name that is not an alliteration. Such as (Perry the Platypus). Whether this is not always true or just not true in Wanda's Division is not known.
It is unknown if Pinky has a codename, like Agent P for Perry. He doesn't seem to go on missions that often.
He has many athletic abilities, such as flipping and running very fast.
In normal pet, his collar is pink (likely as in "The Fast And The Ferbulous:Danville Dirft, as in the portrait in place of Isabella's), but as a secret agent, his collar is sky blue with a yellow dog tag.In "Hide and Seek", Pinky's pink collar has a silver dog tag, but the whole collar turned out to be a little light.