Though he is not a member of The Liberty Brigade, The Spark Man will be making an appearance. He first appeared in United Features’ Sparkler Comics v.2 #1 (1941).
The Spark Man is violinist, Omar Kavak, who found a way to absorb electrical charges and fire lighting through his hand. He decided to use this power to fight crime, spies and enemies of America.
What is his connection to The Liberty Brigade — find out in The Liberty Brigade #1.