Visited by Anissa Pierce, he and Batina were reluctant to engage with her surrounding her daughter's pregnancy, the two learning that their daughter birthed twins of Perdi and Sange lineage. He worked alongside Anissa to protect his daughter and her newborns from Looker's minions, grouping off through the woods. Anaya's father learned of his wife's demise after the onslaught ended, the Perdi creating a burial for her.
During the Anti-Monitor Crisis, Thierry as well as everyone in the multiverse except for the seven Paragons, was killed in an antimatter wave by the Anti-Monitor on December 10, 2019, only to be restored a month later, after the Paragons and the Spectre created a new universe.
Thierry and the Perdi's camp was discovered and attacked by the Markovians. Anaya called Blackbird for assistance. The A.S.A. showed up to help, although Thierry and Anaya were captured by the Markovians before Black Lightning, Thunder, and Grace Choi arrived. Thunder and Grace, however, were later able to rescue them.
- Thierry is deaf, speaking through American Sign Language, but can read lips.