It’s a good bet that many — perhaps even most — of Eliza Dushku’s 1.3 million followers on Twitter have no idea about the actress’s work in Uganda. And that’s understandable: Nongovernmental organizations aren’t nearly as sexy as some of the roles Dushku has played, notably on “Buffy the Vampire Slayer” and “Dollhouse.”

Nonetheless, Dushku and her mother, Suffolk University government professor Judy Dushku , will be at Brandeis next month delivering the keynote address at the school’s annual festival of social justice. They’ll be talking about THRIVEGulu, their nonprofit organization in Uganda focused on building and operating a trauma-healing center in Gulu, in northern Uganda.