Who said "Ruh-roh, Raggy! That's when you know we're right."?

This quote is attributed to Scooby-Doo.

Ruh-roh, Raggy! That's when you know we're right. - Scooby-Doo

"Ruh-roh, Raggy! That's when you know we're right."

Scooby-Doo Truth

"Scooby-Dooby-Doo, where are you?"

"Ruh-roh!"

"Like, zoinks!"

"Let's split up, gang!"

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."