Dr. Kilroy

Dr. Kilroy was a character in the theme, Adventurers. He was the organizer of Johnny Thunder's adventures and acompanied him with Pippin Reed. He also appears in LEGO Racers 2 and MyLego Network.

Lego.com biography
''Professor Kilroy is a famous archaeologist and an expert on everything from ancient cultures to dinosaurs. Although he is getting along in years, Dr. Kilroy is willing to follow any adventure, no matter how dangerous or where it may lead. His intellect solves as many riddles as Johnny's bravery and physical strength.''