Biff and Art

Biff and Art are two plumbers who unclogged the toilet that Bob flushed a cell phone down in the Siri arc Art is based on Arthur, the father-in-law of John Sutton. They both reappeared in one of the "evolution" strips.

Appearances
Both are men about the same height and build as Thaddeus Euphemism with pale skin. They both wear greyish-brown shirts, light brown pants, orange boots, and brown utility belts. They also both wear white name tags.

Art has glasses, straight, combed, grey hair, and a moustache.

Biff is bald and wears a yellow hardhat.

Personalities
Both seem to be pretty playful as they use slang and play rock-paper-scissors.

Art seems to be a bit moody as he starts off hopeful that someday the publisher's clearing house will show up with a check for a million dollars, but when told that he isn't winning it, he gets angry and then sad to the point of tears.

Biff, however, seems more grounded.