Sean Crenshaw, played by Andre Gower, is a character in the film The Monster Squad.
Sean is the son of Detective Del Crenshaw and Emily Crenshaw and the brother of Phoebe Crenshaw. Sean is the defacto leader of the Monster Squad, a club of friends who share an interest and knowledge about monsters.
When Sean comes to realize Count Dracula has organized monsters in order to take over the world. Sean forms a plan with the squad members and they go to action to stop the monsters. When Detective Crenshaw enters the fray in town square, he is attacked by the wolf man. Sean comes to the rescue, distracting him long enough for Del to shove a stick of dynamite in his pants and shove him out a window.
After the monsters have been defeated thanks to Sean's sister, Phoebe, reading the German text from Van Helsing's journal with the help of Scary German Guy opened a rift to purgatory, the military finally shows up. When the captain asks what's going on and who they are, Sean tells them they are the Monster Squad.