Mayim Bialik
Producer Bill Prady and actress Mayim Bialik speak onstage at Inside "The Big Bang Theory" Writer's Room panel during Comic-Con International 2015 at the San Diego Convention Center on July 10, 2015, in San Diego, California.
Mayim Bialik
In the hopes of achieving a scientific breakthrough, Sheldon (Jim Parsons) invites Amy (Mayim Bialik) to challenge him, on "The Big Bang Theory," May, 2015.
Mayim Bialik
Mayim Bialik arrives at the Television Academy's 66th annual Emmy Awards nominee reception on Aug. 23, 2014, in West Hollywood, California.
Mayim Bialik
Actress Mayim Bialik, from the CBS sitcom "The Big Bang Theory," arrives at the 66th Primetime Emmy Awards in Los Angeles, California August 25, 2014.
Mayim Bialik
Mayim Bialik attends the "Big Bang Theory" Press Room during Comic-Con International 2012, held at the Hilton San Diego Bayfront Hotel on July 13, 2012, in San Diego. The former "Blossom" star has been nominated for an Emmy for playing Amy Fowler on "The Big Bang Theory."
Mayim Bialik
Actors Jim Parsons (as Sheldon Cooper) and Mayim Bialik (as Amy Fowler), in a scene from "The Big Bang Theory."
Mayim Bialik
Mayim Bialik, right, and Melissa Rauch attend the "The Big Bang Theory" press conference the 2012 Monte Carlo Television Festival, June 12, 2012, in Monaco.
Mayim Bialik
Actors from "The Big Bang Theory" perform at the 20th Anniversary Alzheimer's Association "A Night at Sardi's" at The Beverly Hilton Hotel on March 21, 2012, in Beverly Hills, Calif. From left are Kunal Nayyar, Simon Helberg, Melissa Rauch, Kaley Cuoco, Mayim Bialik and Jim Parsons.
Mayim Bialik
Mayim Bialik, Kunal Nayyar and Melissa Rauch attend the CBS Upfront 2012 at The Tent at Lincoln Center on May 16, 2012, in New York.
Mayim Bialik
Mayim Bialik poses as CBS celebrates the 100th episode of "The Big Bang Theory" held at the California Science Center on Dec. 15, 2011, in Los Angeles.
Mayim Bialik
Mayim Bialik arrives at the premiere of of Warner Bros. Pictures' "Horrible Bosses" at Grauman's Chinese Theatre on June 30, 2011, in Hollywood, Calif.
Mayim Bialik
Mayim Bialik speaks during the 36th Annual Gracie Awards Gala at the Beverly Hilton Hotel on May 24, 2011, in Beverly Hills, Calif.
Mayim Bialik
Mayim Bialik arrives at the premiere of "Something Borrowed" held at Grauman's Chinese Theatre on May 3, 2011, in Hollywood, Calif.
Mayim Bialik
Mayim Bialik at Melanie Segal's Celebrity S.O.S (Save Our Seas) Lounge on June 3, 2010, in West Hollywood, Calif.
Mayim Bialik
Mayim Bialik poses at the 2011 DPA Golden Globes Gift Suite at the L'Ermitage Hotel on Jan. 15, 2011, in Beverly Hills, Calif.
Mayim Bialik
Mayim Bialik on stage at the 2011 Writers Guild Awards at Renaissance Hollywood Hotel on Feb. 5, 2011, in Hollywood, Calif.
Mayim Bialik
Mayim Bialik arrives for the 9th annual BAFTA tea party at L'Ermitage Beverly Hills Hotel on Sept. 17, 2011, in Beverly Hills, Calif.
Mayim Bialik
Mayim Bialik arrives at Summit Entertainment's "The Twilight Saga: Breaking Dawn - Part 1" premiere at Nokia Theatre L.A. Live on Nov. 14, 2011, in Los Angeles.
Mayim Bialik
Mayim Bialik arrives at the 18th Annual Screen Actors Guild Awards at The Shrine Auditorium on Jan. 29, 2012, in Los Angeles.
Mayim Bialik
Actors Jim Parsons and Mayim Bialik attend the 20th Anniversary Alzheimer's Association "A Night at Sardi's"at The Beverly Hilton Hotel on March 21, 2012, in Beverly Hills, Calif.
Mayim Bialik
From left, actors Johnny Galecki, Melissa Rauch, Kunal Nayyar, and Mayim Bialik attend the 20th Anniversary Alzheimer's Association "A Night at Sardi's" at The Beverly Hilton Hotel on March 21, 2012, in Beverly Hills, Calif.
Mayim Bialik
Melissa Rauch and Mayim Bialik arrive at the closing ceremony of the 52nd Monte Carlo TV Festival on June 14, 2012, in Monaco.
Mayim Bialik
Mayim Bialik speaks with Jim Parsons via satellite at the "The Big Bang Theory" panel during Comic-Con International 2012 at San Diego Convention Center on July 13, 2012, in San Diego, Calif.