Amigo

Amigo is the Molinas' pet bulldog-boxer mix, introduced in the Arthur episode, Arthur and Los Vecinos. He became best friends with the Reads' dog, Pal. His name means "friend" in Spanish. He stole socks for the "Sock Market" and is often involved with Kate, Pal, and Killer's adventures. He is voiced by Robert Brewster in the first twenty seasons, and Carlos Diaz in the twenty-first season.

Physical appearance
Amigo is an overweight orange-furred bulldog-boxer mix. He wears a teal collar around his neck.