ongoing in bold

• John Kramer alias Jigsaw (2023): an older guy with a sassy puppet on a tricycle named Billy and a brain tumor who thinks way too highly of himself [City of Mist]
• Anastasia Aleksandra Andrejewa (2022): no-nonsense Russian ex-soldier on death row with an attitude (it will kill her one of these days but it is not this day!) [S.C.P.]
• Bryndis (since 2022): human tank raised by dwarves, not very smart but good of heart [Dungeons & Dragons 3.5]
• Persephone "Percy" Dreadful (since 2021): plucky wide-eyed conspiracy theorist whose brain goes a thousand miles a second [Monster of the Week]
• Dr. Egon Spengler (since 2019): an introverted librarian too soft for the wonderful world of H.P. Lovecraft [Call of Cthulhu]
• Crowley (since 2019): Tiefling bard, later bard/warlock multiclass, a complete idiot on a downward slope out of misguided worry about his/her/their friends [Arcane Codex, later Dungeons and Dragons 5]
• Leonardo (2015/16? no clue tbh): human rogue, not much of a character, was still very attached to the rogue xD [Dungeons & Dragons 3.5]
• Loki (2013/14ish? something like that): halfling rogue, first try ever, fun first go [Dungeons & Dragons 3.5]