Vance Colvig

Vance DeBar Colvig Jr. was an American character actor. He was the first to portray Bozo the Clown on a Harmon-licensed television program and lent his voice to the Chopper bulldog character on The Yogi the Bear Show. In the 1980s, he made guest appearances in various television series and music videos. Description above from the Wikipedia article Vance Colvig, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Cast

Maid to Order
Man with Newspapers

UHF
Bum

Big Top Pee-wee
Clownie

American Pop
Hobo #1

Rodney Dangerfield: Opening Night at Rodney's Place
Smitty

Arizona Heat
Mr. Gordon

For the Love of It
Old Hippie

Mortuary Academy
Uncle Willard

My Chauffeur
Doolittle

Dudes
Hezekiah

Barfly
Alcoholic Man

The Boys Next Door
Old Man

Track 29
Mr. Ennis

Boris and Natasha
One-Eyed Man