Here is a list of the Casper cartoons produced by Paramount Studios. Currently I have all but four of these, and hope to provide synopses and reviews, and maybe screencaps, as I get the time.
The Friendly Ghost - Nov 16 1945
There's Good Boos Tonight - Apr 23 1948
A Haunting We Will Go - May 13 1949
Casper's Spree Under the Sea - Oct 13 1950
Once Upon a Rhyme - Dec 20 1950
Boo-Hoo Baby - Mar 30 1951
To Boo Or Not To Boo - Jun 8 1951
Boo Scout - Jul 27 1951
Casper Comes To Clown - Aug 10 1951
Casper Takes a Bow-Wow - Dec 7 1951
The Deep Boo Sea - Feb 15 1952
Ghost of the Town - Apr 11 1952
Spunky Skunky - May 30 1952
Cage Fright - Aug 8 1952
Pig-a-Boo - Sept 12 1951
True Boo - Oct 24 1952
Frightday the 13th - Feb 13 1953
Spook No Evil - Mar 13 1953
North Pal - May 29 1953
By the Old Mill Scream - Jul 3 1953
Little Boo Peep - Aug 28 1953
Do or Diet - Oct 16 1953
Boos and Saddles - Dec 25 1953
Boo Moon - Jan 1 1954
Zero the Hero - Mar 26 1954
Casper Genie - May 28 1954
Puss 'n' Boos - Jul 16 1954
Boos and Arrows - Oct 15 1954
Boo Ribbon Winner - Dec 3 1954
Hide and Shriek - Jan 28 1955
Keep Your Grin Up - Mar 4 1955
Spooking With a Brogue - May 27 1955
Bull Fright - Jul 15 1955
Red, White, and Boo - Oct 21 1955
Boo Kind To Animals - Dec 23 1955
Ground Hog Play - Feb 10 1956
Dutch Treat - Apr 20 1956
Penguin For Your Thoughts - Jun 15 1956
Line of Screammage - Aug 17 1956
Fright From Wrong - Nov 2 1956
Spooking About Africa - Jan 4 1957
Hooky Spooky - Mar 1 1957
Peek-a-Boo - May 24 1957
Ghost of Honor - Jul 19 1957
Ice Scream - Aug 30 1957
Boo Bop - Nov 11 1957
Heir Restorer - Jan 24 1958
Spook and Span - Feb 28 1958
Ghost Writers - Apr 25 1958
Which Is Witch - May 2 1958
Good Scream Fun - Sep 12 1958
Doing What's Fright - Jan 16 1959
Down To Mirth - Mar 20 1959
Not Ghoulty - Jun 5 1959
Casper's Birthday Party - Jul 31 1959