Who is Edward Townsend from Only the Good Spy Young and what is their importance?

Edward Townsend is the initially unnamed, British agent, who debriefs Cammie about her encounter with Joe Solomon on the London Bridge. He later turns up at the Gallagher Academy as Solomon's replacement. Townsend is described as patronizing, opinionated, solitary and unfriendly, determined, and judgmental, but ultimately having compassion and integrity.