Yes, there is a character called Death Adder in Marvel Comics. He's not one of the most prominent ones, but he exists in the Marvel universe.
Yes, there is. Death Adder has made appearances in Marvel Comics. However, he might not be as well-known as some of the major heroes or villains. His character design and backstory add to the diversity of the Marvel comic universe.
Sure, Death Adder is a character in Marvel Comics. He usually appears in more niche storylines or limited series. His powers and abilities vary depending on the specific comic he's featured in.