|Notable Members|| Brannigan|
|First Appearance||Basic Training|
Alpha Squad is a Plumber team that boasted about how they could never be beaten until they were defeated by Gwen, Kevin, Tack and Ben (as Diamondhead). Unlike other Plumbers their costumes are red with white circles instead of their costumes being white with red circles. In the episode Basic Training, they are rivals with Ben's Team during a Plumber combat training practice.
Powers and Abilities
They're shown to have no powers, though they are very skilled in hostage situations when they are the villains. They're shown to be quite stealthy as they were able to sneak up on Gwen, Kevin, and Tack before they were distracted by Ben's kamikaze-like attack.
- Another member of the species of the big brown skinned alien can be seen in The Enemy of My Enemy right when Ben, Gwen and Argit arrive at the Plumbers' Academy.
- Their costumes are similar to the way Ben and Albedo had theirs in an inverted color scheme.
- The three unnamed Alpha Squad members from Basic Training are voiced by Greg Cipes, Miguel Ferrer and Yuri Lowenthal.