Thailog turned on his father's shortly after his creation and nearly killed Sevarius and Xanatos along with his biological "father" Goliath. If it wasn't for the timely intervention of Eliza Maza of all three would have perished.

Thailog later re-emerged in Paris. He had become Demona's mate and was plotting with her to capture Macbeth and take his wealth. He was also conspiring against Demona too and planned for her and Macbeth to kill each so he could take Macbeth and Demona's fortunes. He was again foiled by Eliza Maza and Goliath. Demona never found out he planned to double cross her and fled with him.

Demona and Thailog arranged for Demona to be captured by the Manhattan Clan. The plan was for Demona to convert Angela to her cause and release a robotic mosquito to obtain dna samples of the rest of the Manhattan Clan so Thailog could clone them. Unknown to Demona he also created a clone of her with dna taken from Eliza Maza added in to create Delilah.

Demona and Thailog managed to capture the Manhattan Clan and Thailog ordered the death of Angela. Demona objected, Thailog wasn't at all surprised and revealed Delilah to Demona. Demona freed Goliath and Thailog's plan was thwarted. Demona then tried to kill Thailog for betraying her, it looked at though she had succeeded but Thailog has recently resurfaced.