The British actors' union, equivalent to the former Screen Actors' Guild (now part of SAG-AFTRA) in America. See also Creator/ActorsEquity.

An often used concept in media about the biz is that [[Catch22Dilemma you need to be a working actor to join Equity, and you need to be an Equity member to get an acting job]]. The latter bit hasn't been strictly true since closed shop unions were made illegal in 1981, although it's still difficult for non-Equity members to get ''decent'' work. (The same concept also appears in media about the music industry with regard to the Musicians' Union, hence the Musicians' Guild in ''[[Literature/{{Discworld}} Soul Music]]''.)

You will often hear references to the Equity Card, held by members, as in (with reference to later series of classic ''Series/DoctorWho'') "we'll let anyone with an Equity card play him".