Gregor Collins is an American author, speaker, producer and former actor, most known for writing The Accidental Caregiver, a memoir about the three years he spent with Maria Altmann.

[11][12][13] In 2018 Collins was the keynote speaker for events called Love, Maria in New York, Miami, Melbourne, Sydney and Perth - all sponsored by the Women's International Zionist Organization - and in 2019 was the keynote speaker for an event called Te Amo, Maria at the Jewish Cultural and Community Center in San Miguel de Allende, Mexico.

[17] The Accidental Caregiver stageplay premiered at Playwrights Horizons' Robert Moss Theater in New York City on January 26, 2015, and was directed by British theatre director Alice Kornitzer.

[19] In November 2015 Collins wrote the Oscar Wilde-inspired dark comedy Pentonville for the Manhattan Repertory Theatre in New York,[20] which was directed by Jonathan Stuart Cerullo.

[21] In June 2016 Collins created, co-wrote and co-produced the black comedy series Stories for Ali Farahnakian and the People's Improv Theater in New York.