"When you was my age?! My old man was my age, my brother was my age. You was never my age, none o'ya. And the sooner you creeps get hip to that, the sooner you'll dig us!"
[~Action to Doc]
Action (Tony Mordente) is one of the "Ace men" of the Jets. Like some of the others, his nickname is indicative of his personality; he is very bad-tempered and always ready to fight at the drop of a hat, and as such often needs to be held back by Riff and the others. His irascibility borrows heavily from Tybalt in Shakespeare's Romeo & Juliet, who was also known for his volatile attitude.
Action was one of several Jets who was against Riff's idea to have Tony stand with him when he challenged Bernardo to a rumble, but Riff, reminding him and the others of how Tony always came through for the gang, proclaimed that Tony would always be a Jet.
After the rumble, during which Riff is killed by Bernardo, Action is boiling with rage and more than ready to get back at the Sharks, but Ice warns him (and the others) that they have to keep from letting their emotions get the better of them.
After Tony is shot dead by Chino, Action, out of respect for Tony, is the first to come forward to pick up Tony's body, along with A-Rab and Tiger, but they're assisted by two members of the Sharks.