Season 1 Details Casts Episode Lists of Season 1 Title Season 1 Genres Animation Comedy Kids Air Date 2001-08-24 Episode Runtime 00 Hours 11 Minutes Season Number 1 Episode Count On Season 1 23 Production Companies Cartoon Network Studios Greg Eagles Grim (voice) Richard Steven Horvitz Billy (voice) Grey DeLisle Mandy (voice) Vanessa Marshall Irwin (voice) Episode 1 2001-08-24 Meet the Reaper... Episode 2 2001-08-24 Skeletons in the Water Cl... Episode 3 2001-08-31 Opposite Day... Episode 4 2001-08-31 Look Alive!... Episode 5 2001-09-07 Mortal Dilemma... Episode 6 2001-09-07 Get Out of My Head!... Episode 7 2001-10-05 Fiend Is Like Friend With... Episode 8 2001-10-12 Recipe for Disaster... Episode 9 2001-10-19 A Dumb Wish... Episode 10 2002-07-19 Grim vs. Mom... Episode 11 2002-07-19 Tastes Like Chicken... Episode 12 2002-07-26 Grim or Gregory?... Episode 13 2002-07-26 Something Stupid This Way... Episode 14 2002-08-02 A Grim Surprise... Episode 15 2002-08-02 Beasts and Barbarians... Episode 16 2002-08-09 Hoss Delgado: Spectral Ex... Episode 17 2002-08-09 To Eris Human... Episode 18 2002-10-04 Billy's Growth Spurt... Episode 19 2002-10-04 Billy & the Bully... Episode 20 2002-10-11 Big Trouble in Billy's Ba... Episode 21 2002-10-11 Tickle Me Mandy... Episode 22 2002-10-18 Little Rock of Horrors... Episode 23 2002-10-18 Dream a Little Dream...
