Sam Elliott: Chupadogra
Marmaduke : Chupadogra?
Chupadogra : Who are you and what are you doing here?
Marmaduke : Please don't hurt me!
Chupadogra : You're a big boy. Good. The small ones ain't got enough meat on their bones.
[he snarls at Marmaduke]
Marmaduke : Please don't hurt me! I'm sorry, I...
[he hears the dog in a coughing fit]
Marmaduke : Are you okay?
Chupadogra : I'm more than all right.
[he is still coughing]
Chupadogra : Sorry to bother you. Hey, what's a dog like you doing out here, anyways? You're no stray.
Marmaduke : I ran away from home.
Chupadogra : So, you think running's the answer? Huh?
Marmaduke : I don't even know what I'm doing anymore. I acted like a big-shot and lost all my friends, my family.
Chupadogra : Listen, this bag of bones you're looking at used to be something special. I was the alpha dog. Left my home to go run the pack. And man, did I run it. Till they turned on me. Now I live out here alone dodging trains and dogcatchers. Rest assured, compadre, there ain't a day goes by when I don't think about waking up in a warm bed and spending the day with the folks who love me. The real me. Go home. Something tells me it ain't too late for the real you.
Marmaduke : Thank you, Buster.
Chupadogra : [he looks at his old bowl that reads Buster] Been a long time since anybody called me that. Thanks.