Batman: the Brave and the Bold Wiki
Tim Conway Old Man

Tim Conway as his old man character, already looking more than a little like the Weeper

Thomas Dale "Tim" Conway (Born December 15, 1933) is an American actor and comedian who is known for voicing Barnacle Boy in Spongebob Squarepants.

Known for many decades of playing nervous, sad or slow-talking characters, Conway was a staple of The Carol Burnett Show, where he often played a hilariously oblivious older man, known to be able to crack up even the stoic Harvey Korman (the voice of the Great Gazoo on Flintstones). In many movies, he was partnered with fellow nerve-ridden persona slapstick artist Don Knotts (Like Batman, a guest on The New Scooby-Doo Movies).

He voices Weeper in Batman: The Brave and the Bold.