Keigo Takami/Relationships

Endeavor
Hawks and Endeavor seem close considering they've barely just met, although Hawks seems to have been a fan of Endeavor ever since he was a kid. It is shown that Hawks favored Endeavor because he challenged All Might when no one else would. Endeavor has an open attitude towards Hawks and the two get along well despite Hawks' constant joking about and banter.

Hawks even requested a team-up with Endeavor as he needed his help in investigating concerning sightings of Nomu.

Due to the weight of his secret assignment, Hawks felt guilty after the incident with Hood because of the scar that Endeavor received on his face.

Best Jeanist
They appear familiar with each other, as Hawks visited him after the Kamino Incident. It is implied Hawks was responsible for Tsunagu's disappearance.

Dabi
Dabi is the closest one Hawks has gotten to in the League of Villains. After the incident with Hood, Dabi was confronted by Hawks asking why he broke their promise on the Nomu that was supposed to show up. While doing this, Hawks threatened Dabi by holding one of his feathers close to his face. Hawks was disgusted at having to deal with a person like Dabi as seen when he walked alone.

Fumikage Tokoyami
Fumikage first met Hawks when he chose him for Internship, to train during the Vs. Hero Killer Arc. It's shown that Hawks took favor to Fumikage due to the amount of potential he had. The first time they had met, Fumikage could barely keep up with Hawks. The heroes that worked with him told Fumikage that Hawks was just too fast and no one could keep up.

After the work studies, Hawks once again asked for Fumikage during the Shie Hassaikai Arc as they trained together. It's shown that Hawks is surprised on how Fumikage keeps up with him during patrolling. After the patrol, Hawks takes Tokoyami on a flight to show him how much potential he's wasting. With the help of Hawks, Fumikage devises a new move named Black Fallen Angel.