- Shari Rothenberg (played by Kate Mara) on "24"
- Michael Tribbiani (played by Paulo Costanzo) on "Joey"
- Tyson Mao (as himself) on "Beauty & the Geek 2"
All three TV characters attended Caltech.
Last night on "24," Shari Rothenberg used her Caltech Chemistry degree to deduce that a natural gas plant must lower the operating pressure before adding nerve gas into the supply stream.
Michael Tribbiani, Joey's nephew, was a graduate student at Caltech.
Tyson Mao is currently a senior at Caltech majoring in Astrophysics.