Frank Gorshin (April 5, 1933 - May 17, 2005) was an American actor and comedian from Pittsburgh, Pennsylvania, USA.

He was best known as an impressionist, with many notable guest appearances on the Ed Sullivan Show and on The Tonight Show with host Steve Allen. His most famous role was The Riddler in the Batman live action television series. Frank John Gorshin, Jr. was a son of Roman Catholic parents, Frank and Frances Gorshin, a railway worker and a seamstress in Pittsburgh, where Frank, Jr. was born. Aged 15, he took a part-time job as a cinema usher at the Sheridan Square Theatre. He memorized the mannerisms of the screen stars that he saw and created an impressionist act. He was still in high school when he obtained his first paid employment: a one-week engagement at Jackie Heller's New York night club Carousel, which he secured as the prize in a Pittsburgh talent contest in 1951. His parents had insisted that he take the engagement even though his 15 year old brother had been hit by a car and killed just two nights before.

After graduation from Peabody High School, Gorshin attended the Carnegie Tech School of Drama (now known as Carnegie Mellon University) in Pittsburgh. When not studying he worked in local plays and night clubs. He was nominated for an Emmy (Outstanding Performance by an Actor in a Supporting Role in a Comedy) for his most famous role: as The Riddler in the Batman live action television series, in which he was clad in a bowler hat and iridescent green body suit decorated with question marks, and frequently uttered his now-famous high deranged cackle, inspired by Tommy Udo (Richard Widmark) in 1947's Kiss of Death. He also had a memorable role in the 1969 Star Trek episode "Let That Be Your Last Battlefield" as the half-whiteface, half-blackface Bele, for which he was again Emmy-nominated. Prior to that, he was a dramatic actor, often playing "tough guys" like those played by one of his favorite target of impressions, James Cagney, whom he was said to resemble. He did take a comic turn, though, as the myopic bandleader Basil (paired with singer Connie Francis) in 1960's Where The Boys Are, and played a boss-behind-bars for laughs in Otto Preminger's 1968 comedy Skidoo.