Dexter's Laboratory
Height Unseen/Bygone Errors/Folly Calls
TV Flash files “Height Unseen/Bygone Errors/Folly Calls” as hour 74 of 78 in the TV Flash guide — Dexter's Laboratory (1996–2003) on Cartoon Network, season 4, episode 9, aired 2003-09-12, 30 min.
From the desk
How this hour is filed
This leaf is S04E09: listed hour 74 of 78 in the Dexter's Laboratory guide, hour 9 of 13 in season 4. It aired 2003-09-12 (30 min). The listed hour before it is “Babe Sitter/Mountain Mandark/2Geniuses 2Gether 4Ever” (S04E08). Next is “Voice Over/Blonde Leading the Blonde/Comic Stripper” (S04E10).

Viewer FAQ
Where does Height Unseen/Bygone Errors/Folly Calls sit in the Dexter's Laboratory guide?
S04E09 is listed hour 74 of 78 — hour 9 of 13 in season 4, season 4 episode 9.
When did Dexter's Laboratory S04E09 air?
Height Unseen/Bygone Errors/Folly Calls aired 2003-09-12 and is listed at 30 minutes.
Where did it come from?
Cartoon Network from 1996 after What a Cartoon! shorts — creator-driven shorts as the network's original-hit model.
In the series
Why this series still plays
A boy genius, a secret lab, and a sister who treats every experiment like a dance floor. Genndy Tartakovsky’s early Cartoon Network voice: tiny scientist, huge ego, omnilingual babble, and slapstick that moves like storyboards on espresso. Creator-driven shorts as brand-building — late-nineties CN comedy before the lab door ever stayed locked.
The work, first: a boy genius, a secret lab, a sister who treats every experiment like a dance floor, slapstick that moves like storyboards on espresso. Genndy Tartakovsky's Cartoon Network series arrived in 1996 out of *What a Cartoon!* shorts and became a key early original hit: tiny scientist, huge ego, omnilingual babble. Christine Cavanaugh's Dexter; Allison Moore, later Kathryn Cressida, as Dee Dee. Jeff Bennett as Dad. Creator-driven shorts as brand-building before the lab door ever stayed locked.
Filed against
- Christine Cavanaugh as Dexter
Christine Cavanaugh’s Chuckie Finster made Rugrats a nervous narrator of the backyard jungle — 1990s catalog Nicktoons invention, then Dexter’s Laboratory asking the same throat for a boy genius with a dance-floor sister. TV Flash files…
- Allison Moore as Dee Dee
Allison Moore voiced Dee Dee on Dexter’s Laboratory — the sister who treats every boy-genius experiment like a dance floor and every secret lab like an unlocked door. Genndy Tartakovsky’s Cartoon Network shorts needed that chaos. TV Flash…
- Kathryn Cressida as Dee Dee (later)
Kathryn Cressida voiced Dee Dee later on Dexter's Laboratory — Cartoon Network sister energy as a dance-floor wrecking ball aimed at a boy-genius lab. Genndy Tartakovsky slapstick, omnilingual babble, shorts that moved like espresso…
- Jeff Bennett as Dad
Jeff Bennett voices Dad on Dexter’s Laboratory — boy genius, secret lab, a sister who treats every experiment like a dance floor. Genndy Tartakovsky’s early Cartoon Network voice: tiny scientist, huge ego, slapstick on espresso. TV Flash…
- Kath Soucie as Mom
Kath Soucie made baby twins sound like a whole suburb on Rugrats — Phil and Lil DeVille as pickle-jar mythology — then slipped into Dexter’s Laboratory’s Cartoon Network lab noise. Nicktoons invention with a second register. TV Flash…