Tommy "the Screamer" (Ben Stiller): an aggressive, testosterone-fuelled bully who takes his pent-up rage out on anyone who irritates him in the slightest way by viciously screaming at them, in an episode fittingly titled "The One With The Screamer." He was briefly in a relationship with Rachel, doing well throughout this period of time to hide his aforementioned pent-up rage from her, with Ross being the only witness to it after seeing him screaming at an elderly couple who were accidentally in his and Ross' seats shortly after they first met at the theatre, and he later screams at Ross just because the latter almost spilt hot coffee on him. Frightening and intimidating people in this manner apparently amuses Tommy, who appears to be in a good mood after screaming at both Ross and the elderly couple. Ross tries to warn Rachel of what a bully Tommy is, but she does not believe him, assuming he's just making up the stories regarding Tommy's outbursts of anger in order to split them up so he can have Rachel all to himself (and considering that Tommy had learned of Ross' past with Rachel and witnessed how awkward they were around each other to his own bemusement, it is likely that he guessed after witnessing this that she would jump to this conclusion if Ross ever tried to warn her what a bully Tommy really was). However, his aggressive true colours are exposed to Rachel after she, Monica, Phoebe, Chandler and Ross witness him lose his temper after Joey and Chandler's pet baby chicken urinates in his hand and, unable to keep his anger in check, he screams at both it and their pet duck when its quacking irritates him further. Accepting to his own chagrin that she and the others are now afraid of him, he breaks up with her before leaving and is never seen again afterwards.