Viktor is often the odd sibling out among the Hargreeves, going from a seemingly powerless pariah in Season 1 to an overpowered possible threat in Season 2. For most of his life, everyone else made decisions for Viktor, and it often seems only Klaus has his back.
On the r/UmbrellaAcademy subreddit, u/Tealotaku posted a photoset of two moments from the show in which Klaus tried to advocate for Viktor's agency. The first scene comes during Season 1, Episode 9 ("Changes"), after Viktor kills his abusive partner, Leonard (John Magaro). Number Five, Diego, and Klaus find the body. Number Five asks who could have done it, and Klaus suggests the "crazy" idea of asking Viktor what happened.
The second scene in the photo set comes from later in the same episode. Having subdued Viktor, the rest of the Hargreeves siblings lock him in the same anechoic chamber he was often kept in as a child. While they debate what to do with him, he sobs and pounds on the soundproof door. Again, Klaus begs for them to simply ask Viktor what happened instead of acting on his behalf.
While Klaus may have plenty of issues of his own, perhaps that's why he feels such a strong affinity for Viktor. Put simply, he also knows what it's like to struggle. Fans loved these moments juxtaposed, with u/KintsugiPanda writing of Klaus, "He actually tries to communicate and find out why. As someone who I wish more people I care about did that for me ... it's very much appreciated." Interestingly, u/Strix924 also chimed in, "He always advocates that [Viktor] needs their help, having those new powers must be scary. Respect".
