Chloe Webb now runs a specialist store - and travels the world buying and selling Pokémon cards.
It comes as Chinese-owned short-video app TikTok's future remains uncertain in the US.
The actress's career has enjoyed a recent resurgence thanks to a role in the film The Last Showgirl.
Trachtenberg, 39, found fame in television series Buffy the Vampire Slayer, and later Gossip Girl.
Gary Lineker, Anita Rani, Riz Ahmed and Miriam Margolyes are among the signatories on the open letter.
Tulsi Gabbard said she was seeking further information from the FBI and other US agencies.
US President Donald Trump sparked a social media frenzy when he posted a video of Gaza generated by artificial intelligence on his site Truth Social. Marianna Spring has been analysing the online tactics of Trump and his team.
The US president sparked a social media frenzy when he posted a video of Gaza generated by artificial intelligence on his site Truth Social.
The US president sparked a social media frenzy when he posted a video of Gaza generated by artificial intelligence on his site Truth Social.
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