Piledriver (Brian Philip Calusky) is a fictional supervillain in the Marvel Comics universe. He is a member of the Wrecker's Wrecking Crew. The character was created by Len Wein and Sal Buscema and first appeared in Defenders #17 (November 1974).
Garthwaite, together with Calusky and two other inmates at Ryker's Island Prison, Dr. Eliot Franklin and Henry Camp, made a successful jailbreak and managed to locate his crowbar. Willing to share his power with his allies, The Wrecker had the three other convicts join him in holding onto the crowbar outside during an electrical storm. Lightning struck the crowbar, magically distributing the enchanted strength bestowed upon The Wrecker among the four of them. The Wrecker's three allies then adopted costumes and aliases as well: Franklin became Thunderball, Camp became Bulldozer, and Brian Philip Calusky became Piledriver. As a result of his new-found powers, his hands became over-sized in proportion to his body. Together the four superhumanly strong criminals became known as The Wrecking Crew, who were led by The Wrecker himself.
Piledriver has the demeanor of a "good ol' country boy" (despite being born in the very urban Brooklyn, NY.) He has fought many of Marvel's superheroes over the years, including Spider-Man, The Avengers, The Defenders, and most often, Thor. He, as part of the Wrecking Crew threatens the lives of the innocent civillains of Damage Control. Thunderball, who as a soft spot for man in charge, John Porter, actually attacks Piledriver and the others, via trickery, allowing the D.C. employees to escape.
Unlike Thunderball, Piledriver has remained loyal to The Wrecker and has only been separated from The Wrecking Crew through various incarcerations in prison. While Piledriver and the rest of The Wrecking Crew have faced defeat on many occasions, they always come back for more, making them one of the most enduring supervillain teams in Marvel's history.
As part of the Hood's gang, he later joins the fight against the Skrull invading force in New York City.