Possible Clues:

• Friend of Stimpson J. Cat
• Toon dog of the 1990s
• Stimpy’s pal
• Stimpy's cartoon bud
• 'Footloose' hero ___ McCormack
• TV pooch with a temper
• Cartoon dog surnamed Hoek
• Nickelodeon pooch
• Neurotic toon dog
• TV canine