Tam Anderson was a Genoshan Magistrate, part of the military that enforced the social order that saw the mutant population enslaved as mutates. When Wolverine and Rogue were captured by Genosha's Press Gang, Anderson briefed the Genegineer on the situation.
Anderson would later be one of the Magistrates sent to abduct Storm and the New Mutants, as part of Cameron Hodge's attempt to use Genosha in his plot for revenge against mutantkind. She would later realize that Hodge's plots would only bring ruin to her country, and became an unlikely ally to the X-Men, leading a military coup that saw the Genoshan President overthrown and ended Hodge's influence over the country.
After the fall of the old administration, Anderson continued to serve Genosha during the reconstruction period.
During the Genoshan Civil War, Anderson led the Magistrates in efforts to restore order to the devastated country and had some success. However, the situation quickly destabilized again, due to the manipulations of the Enclave. Anderson worked with the Fantastic Four to end their interference in her country, eventually sacrificing herself when she unleashed a black hole grenade that consumed her and the Enclave's leader Crucible.
-Marvel Fandom
Key Issues & Appearances
1
Significant comic book appearances featuring Chief Magistrate Anderson