Signs (2002)
One of the kids is watching TV.White Oleander (2002)
The cartoon that Owen and Davey are watching when Star introduces Astrid to the familyDark Water (2005)
End credits feature a 'courtesy of Cartoon Network' acknowledgement for use of this show"Eureka" E=MC...? (TV Episode 2007)
Henry watches this in the lab.
Dexter's Laboratory: Ego Trip (TV Movie 1999)
Dexter's Laboratory: Chicken Scratch (Short 2001)
Dexter's Laboratory: Changes (Short 1995)
"WCW Monday Nitro" Dial M For Mongo (TV Episode 1996)
Eric Bischoff mentions that Randy Savage voices a character in the "Dial M For Monkey" segment of this show.P.U.N.K.S. (1999)
Miles's shirt."The Powerpuff Girls" Beat Your Greens/Down 'n Dirty (TV Episode 1999)
Dexter's dad can be seen"The Powerpuff Girls" Imaginary Fiend/Cootie Gras (TV Episode 1999)
In "Imaginary Friend", one imaginary friend Bubbles conjures up to battle Patches is Koosalagoopagoop"The Powerpuff Girls" Criss Cross Crisis (TV Episode 2000)
As the Professor keeps switching bodies to get them right, Dexter appears as one of the many combinations
What a Cartoon! (TV Series 1995–2002)
"Arthur" The Contest/Prove It (TV Episode 1999)
When thinking of ideas for episodes to submit to the tv show writing contest, the Brain starts to describe his and we see a cut-away sequence spoofing Dexter's Laboratory.Underfist: Halloween Bash (TV Movie 2008)
Billy, as B, is dressed liked Dexter.Yu-Gi-Oh! Bonds Beyond Time (2010)
Paradox parodies Mandark and has the same laugh."Ultimate Cartoon Fighting" Dexter vs. Stewie - UCF Round 3 (TV Episode 2012)
Dexter fights Stewie Griffin from Family Guy. Also, Dee Dee appears.Frizzle and the Magic School Bus (Video 2014)
Dee Dee appears as one of Ms. Frizzle's students