The character Glum, one of the Lilliputians from "Gulliver's Travels", always had a gloomy outlook on everything. He used to say things like "It'll never work, we're all doomed" in a dreary, monotonous voice.
Buford
Two Looney Tunes characters : The Abominable Snowman ("The Abominable Snow Rabbit") and one of a pair of dogs [I do not recall the name.] .
Wonder Twins, the were part of the Justice League.
Little Johnny Jet
Kimba the White Lion
Buford
Two Looney Tunes characters : The Abominable Snowman ("The Abominable Snow Rabbit") and one of a pair of dogs [I do not recall the name.] .
A Gremlin alongside Bugs Bunny .
Wonder Twins, the were part of the Justice League.
Dib is one of the best characters from the Invader Zim cartoon ! Yes , Dib is cool as are the rest of the Invader Zim characters . No Gaz and Gir are said to be the best.
Little Johnny Jet
Which character? You said "this character" but failed to mention one or provide a list of characters to choose from.
Dear old Bristle hound
Willoughby the Dog from the Warner Brothers cartoon, Of Fox & Hounds although, it's a reference to Of Mice & Men, hence the similarities of the titles.It was said by other characters but originated with Willoughby. See Provided Link.
Jack Skellington .
Kimba the White Lion
They never said what Pinestar's kittypet name was.