Time travel, distant worlds, deadly aliens, and the Doctor – Timelord, master of time, space, (and of course the sonic) are just a few things that make the Doctor Who universe as amazing as it is. Despite all of this, the series and the Doctor would be nothing without their devoted companions, who more often than not end up being the backbone of some of the most important stories in the show.

However, not all companions are made equal. Due to various showrunners, different writers, and just the conceptualization of the characters, some of them just end up falling short of audiences’ expectations. But in other cases, the companions can even go on to overshadow the Doctor.