Doug Hadel the Mole man is a side character in Sam & Max Hit the Road.
Character Detail
Doug lives in the Tunnel of Love control room at the Kushman Brothers' carnival, where he spends most of his time watching TV; apparently crumby reruns.
He loves pecan candy and asks some from Sam and Max to tell them what really happened with Bruno and Trixie.
He apparently is a close friend of Bruno and had several hours worth of stories to tell Sam (and unwillingly, Max) about them; including having met him in Saigon (now known as Ho Chi Min City) and a cut-short story about having their taxes done by a platypus.
He also gives them the "key" to Trixie's trailer, and points them towards his uncle, Shuv-Oohl.