Is Gaius Germanicus Caligula the same person?

Question:as JULIUS CEASAR?

Best Answer - Chosen by Asker: as JULIUS CEASAR?

Gaius Julius Caesar Augustus Germanicus (August 31, 12 – January 24, 41), more commonly known by his nickname Caligula was the third emperor of the Roman Empire, and a member of the Julio-Claudian dynasty which descended from Augustus.
Gaius Julius Caesar was a Roman military and political leader and one of the most influential men in world history. He played a critical role in the transformation of the Roman Republic into the Roman Empire.
Gaius or Caius was a common Roman praenomen. It is abbreviated C.; the abbreviation goes back to before the Roman alphabet distinguished between C and G

No.

Refer to any list of Roman Emperors for the reference.

Maja is correct. As an added answer to complete it, Caligula was a type of "pet" name for him, it means "Little Boot", it's not an official name.

"A.D." in a date does not mean "after death". It is an abbreviation for the Latin phrase "Anno Domini", which means "in the year of our Lord." Also, for future reference, it should precede the date and not follow it.