Derek Huff

{Outdated}}"Brennan has a man-gi-NA! Brennan has a man-gi-NA!"

- Derek Huff Derek Huff is the primary antagonist of the 2008 comedy film Step Brothers. He is the successful biological younger brother of protagonist Brennan Huff, and stepbrother of Dale Doback.

He was portrayed by actor Adam Scott.

Biography
Derek is the vice-chairman of a helicopter-leasing company. Despite being his younger brother, Derek arrogantly mocks Brennan for being an immature, unemployed spoiled brat, along with Dale.

Derek first appears in a flashback, mocking Brennan and humiliating him by singing "Brennan has a mangina". Later on, he would go on to win a talent contest by lip-syncing Ice Ice Baby.

Years later, Derek, now the vice-president of a large corporation, visits his new stepfather, Robert Doback, and his mother, Nancy, where he was constantly annoyed by Dale, Robert's son. After dinner, he brags to Dale and Brennan about how wealthy he is. In retaliation, Dale punches him in the face.

When Dale and Brennan come home from their failed job interviews, Derek and Robert are seen talking about selling the house, which horrifies the two brothers. When he repeatedly tries to sell the house, Dale and Brennan scare his customers by pretending the house is haunted, or dressing up as Nazis and Ku Klux Klan members. One Derek's birthday, Brennan decides to show off their presentation (or "investment meeting" as they call it) for Prestige Worldwide, Dale's idea for a major entertainment company. Derek mocks the presentation (and sarcastically calls it a classic).

When the two brothers split up, Brennan goes to work for Derek at his company. Things go well, until Brennan asks to manage the Catalina Wine Mixer, Derek's company's fundraiser. Unfortunately, Brennan hires a bad singer, who lashes out at one of the executives. Derek fires him. However, when Dale and Brennan sing together, it reminds Derek of his friendly childhood with Brennan, who taught him how to fly a kite.

After this, Derek begins to treat his brother with more respect, and learns not to be so boastful.