I loved Dexter’s Lab.  I thought it was a consistently amusing show, and Dexter had this great voice.  I definitely went through a Cartoon Network phase even though I was in my 20s.  My little sister was concerned because even she was too old to be watching Dexter.  

I have Never seen the Showtime show out of protest.

I think Dexter would make a great costume.  You could get a wig, some big glasses, and some sort of labcoat top.

I think the best part would be talking like Dexter all night.  

This could also be a duo costume.  You could go as Dexter and Dee Dee or

you could go as Dexter and Dexter