G-Man

A Mysterious Entity that intercepted in Richtofen and Geralt's match to steal the win, as if he knew he was going to win all along...

Unforeseen Consequences
Mostly nothing is known about the G-Man, other that he is seen talking with people at intervals in the surrounding of those about to be contracted. He seems to appear in places of importance, and pay attention, lead, and somewhat "protect" those who appear to be any value to him or his employers, as during the Resonance Cascade incident, he followed Gordon Freeman and and Adrian Shepard around but ignore Barney Calhoun. In the former 2 cases, he "offered" an employment offer to those who appeared to surpass an incredible feat, and mention his employer's interest in them.

Season 3
The G-Man suddenly appears a third party to Richtofen's match and, surprisingly, fights himself as he appears as an incredibly strong fighter, which he probably hasn't done before in a long time as he merely serves as the contracter and not someone who is meant to interfere in previous events.

Now, The G-Man has appeared to have a deeper reason to be in TFR, and what might that be is the ultimate question.

Episode 5
He's the leader of the Troubleshooters, and works alongside The Final Resistance. Technically funded by the governments, and in turn The Three Kings, they chose to help people most of the time instead following the kings, as it's rare to receive a Kill-on-Sight from them.

Episode 9
During a party in TFR HQ, the bogdanbots in the troubleshooters activate and they slaughter indiscriminately.

G-Man pleads allegiance to the Kings since then.

Season 7
G-Man's leads the mysterious third family and is at conflict with the Sonozaki Family and Mafia City.

BCW Episode 4
Manages to snatch James Tomitake into his family.

BCW Episode 6
Leaves for unknown circumstances and leaves James Tomitake in charge meanwhile.

Trivia

 * The G stands for "GIGADIMES"