Calvin Slugterra

Calvin Bukowski have Tazerling name is thunder. He was in 99 caverns where his sister were missing. Calvin decided go in deep 99 Caverns, his parents and brother Konrad didn't know where Calvin go. Calvin join the shane gang, he met Eli Shane. when he was 14 year old. Present he is 23 year old. (The Henry Stickmin Collection and Slugterra)