"Oh no I won't!"

Marvin's pet Martian dog
Personal Information
Gender Male
Species Martian-dog
Birthday July 24, 1948
Occupation Serving Marvin the Martian
Homeworld Mars
Significant other(s) Marvin the Martian (owner)
Production Information
First appearance Haredevil Hare (July 24, 1948)
Voiced by Mel Blanc (1948)
Frank Welker (2003-present)

K-9 is a green cartoon Martian dog in the Warner Brother's Looney Tunes series of animated shorts. He is closely associated with Marvin the Martian as K-9 is Marvin's pet dog and sidekick in some Looney Tunes production.