Clyde Flynn is a person that lives in Danville's woods and hosts Camp Phineas and Ferb. He is not a very good bugler, but loves to sing and entertain the children. He often tells stories that he heard in his childhood like Bigfoot and Badbeard. He is not only a story teller, he is a color commentator as stated by Phineas for the roller rink commentary, but rather than adding "color" to the information, he actually said the names of different colors (Clyde: "Red, green, blue!" Phineas:"Excellent colors, grandpa") ("Crack That Whip"). He is the father of Linda Flynn and Tiana Webber. He's also the grandfather of Phineas Flynn and Candace Flynn, and step-grandfather of Ferb Fletcher.
The image gallery for Clyde Flynn may be viewed here.
Clyde wears his watch on his right arm, ("Get That Bigfoot Outa My Face!"), and unlike the other characters in the show, he wears his watch all the time, (not just before needing it).
Clyde's actor (Barry Bostwick) has previously appeared in the Rocky Horror Picture Show, which was, ironically, written by Richard O'Brien, who now voices Lawrence Fletcher in all of the character's appearances.