Odie

Odie: 

1) Loveable but dopey yellow-furred

2) Brown-eared dog constantly panting with his very large tongue

3) The only character without a "voice"

4) More recently, he was seen actually speaking in one of Garfield's dream sequences). 

5) Often kicked off the table by Garfield or the victim of some practical joke. 

6) Odie's original owner was Lyman, a friend and roommate to Jon Arbuckle. 

7) However, Lyman disappeared in 1983 and Odie became a pet to Jon. 

8) Odie is, to Garfield, a complete slobbering idiot (though it's not the actual case since Odie did manage to take revenge on Garfield occasionally, and Garfield usually cannot notice it). 

9) He is rarely seen without his giant tongue and drooling. 

10) Recently, Odie seems to be walking on two feet more often. 

11) He first appeared on August 8, 1978.