Because you like Tramp in Lady and the Tramp

Meticulous Arthur is always prepared, but he may not be ready to be the point man in the criminal world of dream sharing. See them in Inception.

The cutest kitty this side of the galaxy, Nepeta Leijon is mischievous, caring, and obsessed with romance. See them in Homestuck.

Neil Perry is a brilliant student with an artist's soul. And he's desperate to unleash it. See them in Dead Poets Society.

Francis Freeman may be impervious to pain, but he sure knows how to inflict it. See them in Deadpool.

A self-professed psychopath, James kills small animals for fun. After getting bored of that, he is ready for an ambitious murder. See them in The End of the F World.

Mr. Fox will never truly be happy without a dead chicken between his chompers. See them in Fantastic Mr. Fox.

Tidus is upbeat, carefree, and desperate not to become his father. See them in Final Fantasy Series.

Let's just say Sheldon Oberon is having an out-of-body experience like no other. See them in Jumanji.

After having his mind altered after a bad breakup, Joel Barish is not convinced that ignorance is bliss. See them in Eternal Sunshine of the Spotless Mind.

Kumar Patel is always high, always hungry for sliders. See them in Harold & Kumar Go To White Castle.

Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.