Ruff

Ruff is Dennis Mitchell's pet dog and the deuteragonist of Dennis the Menace.

It is uncertain of what type of dog breed he is.

Voice History

 * Phil Hartman (vocal effects) (1986)
 * Maurice LaMarche (vocal effects) (1988)
 * Greg Burson (speaking voice) (1993)
 * Dan Gilvezan (vocal effects) (1993)
 * John Ritter (speaking voice) (2002)
 * Lee Tockar (vocal effects) (2002)