Before she was Tasha Yar, she was Lieutenant Commander Macha Hernandez.

For the Season 14 finale of The Trek Files, Denise Crosby joins Larry Nemecek to revisit her original 1987 audition sides for Star Trek: The Next Generation, including early character descriptions that reveal a very different version of the Enterprise's security chief.

Denise first read for Deanna Troi before Gene Roddenberry made a pivotal switch, reshaping the role of Macha Hernandez into Tasha Yar to fit Denise's strengths. In this week's episode, Denise reflects on the audition process, her favorite scene between Troi and Yar that was never filmed, and what those early creative decisions revealed about the direction of TNG.

She also shares memories of those uncertain early days of production, the risk of launching a syndicated sequel to an iconic series, and the emotional complexity of stepping into (and eventually stepping away from) such a historic role. Along the way, Denise speaks movingly about loss after the Palisades fire, resilience, fandom, and what it means to revisit Star Trek decades later.

It's a revealing look at how a character evolves, how casting can reshape canon, and how even discarded script pages tell the story of Star Trek's creative DNA.

Documents and additional references

Star Trek: The Next Generation Casting Character Bios & Audition Sides (January 30, 1987)

Original description of Lieutenant Commander Macha Hernandez and early security chief character concepts.
Star Trek: The Next Generation Pilot Casting Sides (February 11, 1987)

Troi/Yar audition scene never filmed for TNG.

The Trek Files Season 14 on Memory Alpha

All episodes and documents: The Trek Files on Memory Alpha

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