Who Plays Derek on ‘Euphoria’? Flashback Introduces Cal’s Best Friend

It is all so beautiful, raw, and organic, but nothing lasts forever. The next day, Cal — who’s still on Cloud 9 from the night prior — gets a phone call from his girlfriend, Marsha (Rebecca Louise), who proceeds to tell him she’s pregnant. Cal’s world comes crashing down almost instantly.

Said unborn baby would grow up to be Nate’s older brother. Cal and Marsha got hitched and had two boys, a lie of a life that contributes to (or created) Cal’s misery. Sadly, the abusive father more often than not takes his pain out on Nate.

Source: https://www.distractify.com/p/who-plays-derek-euphoria