Seems to me there is some resemblance to Tug Transom. But a couple of other adventurers could fit versions of that description - Bulldog Drummond and Patrick Dawlish (John Creasey writing as Gordon Ashe)
Dawlish is described as:-
"Dawlish was shown as a huge man with a group of hearty, hard-hitting friends, based on the 'Bulldog Drummond' tradition. Drawn by chance into a vicious series of crimes, he decided to solve them himself"