April Ritzenthaler (née Hermann) is one of the original founders of Texas Roller Derby (TXRD), formerly known as Texas Lonestar Rollergirls, a banked track roller derby league based in Austin, Texas. Ritzenthaler, aka La Muerta (originally "Queen Destroyer"), was featured in "Hell on Wheels," a documentary released in 2007 about the creation of the all-female roller derby league founded in 2001 that sparked the modern derby revival. In 2006, she also appeared in a 13-episode reality television series on A&E titled "Rollergirls," the 2012 documentary "Leave It On The Track," and the Netflix docuseries "Home Game," released in 2020.
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| 2012 | Leave It On The Track as La Muerta |
| 2011 | This Is Roller Derby as Narrator |
| 2007 | Hell On Wheels as Queen Destroyer / La Muerta |
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