Charles Dickens created the character Mr. Micawber, he also created Uriah Heap.

—–>>> but that is STILL TOO WORDY!!!

*****CHANGE THE SENTENCE ENTIRELY ******

to either:

1. Charles Dickens created the characters of Mr. Micawber and Uriah Heap.

OR

2. Charles Dickens created the characters Mr. Micawber and Uriah Heap.

OR

3. The characters of Mr. Micawber and Uriah Heap were created by Charles Dickens.

*** those are youre better options, and more structurally sound and to the point.

Charles Dickens created the characters Mr. Micawber and Uriah Heap.

Charles Dickens created the caracters; Mr. Micawber and Uriah Heap.