You’ll want to take personality and character type into account when making the central party. This post discusses choosing character type for balance and fun.
Building Your World
The Basic Roles of the Dungeon Master
Running a game of D&D is extremely rewarding. In this one function, you have the chance to take on several exciting and ever-changing roles: storyteller, narrator, actor, arbiter, and coordinator. This post discusses each of these in detail.
How to Create Your Player Character [PC] in D&D: First Steps
We suggest, if you’re new to role-playing games (RPGs), that you base your character on an aspect of yourself so that you have relatively quick access to their emotions and personality. But more importantly, it makes for a really fun way to play. We use the term primary character to further designate the main character of your game, your central protagonist. Basically, you’ll need one character whose life and story drive the plot of your narrative. This is a bit different than games with larger numbers of players whose PCs work together, as a party, to collectively tell a story. In a duet, it’s all about the primary character!