Alexandra Blaisdell Carr (born May 27, 1966), credited as Alexandra Carr, Alexandra B. Carr or Alex Carr, worked on Mystery Science Theater 3000 from Season K through Season 4. She served as a Production Assistant, Post-Production Coordinator, Fan Club Coordinator and Production Manager. She also performed Magic Voice from Season 2 through the middle of Season 4.

In addition to Mystery Science Theater 3000, she also produced and served as production manager on Life Sold Separately, which was written and directed by Paul Feig and co-stars Feig, Dave (Gruber) Allen and Penn Jillette. She also served as unit production manager on Stanley's Gig (2000).

She has been married to Michael Frederick since October 14, 1995.

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