Melissa RauchBernadette Is 4'11''Melissa Rauch as Bernadette smiling in the Big Bang TheoryIt's obvious that Melissa Rauch of The Big Bang Theory cast, who plays Howard's firecracker wife Bernadette Rostenkowski, is the shortest person on the show. Sara GilbertLeslie Is 5'3"Leslie Winkle and Leonard on The Big Bang TheoryRoseanne alum Sarah Gilbert plays Leslie Winkle in The Big Bang Theory cast. Aarti MannPriya Is 5'3"Like many other members of The Big Bang Theory cast, Aarti Mann is of average height in terms of The Big Bang Theory cast. Oddly, this makes her the tallest of the shortest The Big Bang Theory cast members. Laurie MetcalfMary Cooper Is 5'7"Mary Cooper complains about Sheldon in The Big Bang TheoryIn The Big Bang Theory cast, Laurie Metcalf plays Sheldon Cooper's mother, Mary Cooper.