I have my insane Shepard:
femshep, name: Nimue, adept, blonde in ME1&2, light pink hair in ME3, ruthless, Earthborn, kept the scars from Lazarus Project
Romanced Liara in ME1, Thane in ME2 and ME3.
Obsessed with power, renegade and cruel but mostly nice to her crew, especially to females. Mostly, she takes other girls for action, with the small exception for Thane and Javik. She loves trolling Liara, didn't have any regrets for leaving her, started the romance, because she wanted to know how does it feel to mate with asari.

Ignored Samantha and Vega, when talking to them she always took renegade responses.
Decisions:
ME1: killed rachni and Wrex, saved Council, chose Anderson, saved Ashley
ME2: thrown that merc through the window in Dantius Tower, destroyed Maelons data, took Grunt and Legion with her, killed the heretic geth, left workers to die at Zaeed's loyalty mission, earned loyalty of everyone (but lost Miranda's), in SM died: Jack, Mordin, Grunt, Zaeed, Jacob, Miranda, LEgion, destroyed the collectors base, because Thane wanted that.
ME3: saved Samara, sabotaged the genophage, killed Ashley, killed the quarians for no particular reason, killed the rachni-something, chose destroy though she wanted to choose control at first (but didn't want to live forever without Thane and remembered the time he said that "it is important not to become what we fight" - or something similar. She turned away in the last moment and went for destroy believing that she would die- how unfortunate that she took that breath at the end.
This is my experimental renegade Shepard, that I really started to like in ME3. I knew what will happen, when I made choices with that Shepard, the only bad thing that happened and wasn't my conscious choice was JAck's death on SM. I made an effort to kill every other character and wanted to kill Garrus too, but decided that ME3 squad would be too boring without him.