Richard Ellef Ayoade is a British comedian, actor, broadcaster, and filmmaker. He played the role of socially awkward IT technician Maurice Moss in Channel 4 sitcom The IT Crowd.
To reproduce his Moss character, try using some or all of the following in your prompt: "Richard Ayoade as Moss, plaid shirt, paisley tie" (or whatever style of tie you want)
I tried to train Moss's hairstyle into a separate tag for use on its own using "parted afro", but it doesn't seem to have learned it because it is ignored in non-Moss images. However, the hairstyle usually does appear when making images of him as Moss, and it's possible it could help reinforce the hairdo for the rare Moss-related images that don't already have that hairdo by default. Of course, you can always prompt him as Moss but describe different clothing to get the hairdo without the rest of the outfit for that character.
A few of the sample images were assisted with ControlNet OpenPose and/or minor inpainting.