Offspring (real name Luke O'Brian) is a shape-changing vigilante and the son of Plastic Man. Their relationship is strained as Plastic Man was a poor father, although it's gotten better. He has been a member of the Teen Titans and The Terrifics.
Offspring was created by Mark Waid and Frank Quitely, first appearing as part of the Kingdom Come universe in The Kingdom: Offspring #1 (1999).
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