Sure it did, but it was a very different type of comedy than is used with the character today. The old Plas shapeshifted in an almost casual fashion, using his ductile body in an endless variety of bizarre shapes that were often used to fight crime in humorous ways, such as stretching out a foot fifty feet in order to trip someone up, or turning himself into a human cage to take crooks to jail. The modern Plas is more of a lunatic stage comic. The old one was a slapstick artist, not a comedian or a practical joker - there's a difference.