Actors' Equity Association
- Branch of the Associated Actors and Artistes of America founded in 1913. The AEA union represents actors and stage managers in theatre within the United States. Includes casting calls, membership details, FAQs, contracts and document library.
- http://www.actorsequity.org/

Screen Actors Guild
- Includes information for beginning actors, a member directory, and the SAG awards.
- http://www.sag.org/

Canadian Actors Equity Association
- Involved in member protection and promotion and in fostering the growth and development of professional theatre and actors throughout Canada.
- http://www.caea.com/

A.F.T.R.A.
- "The American Federation of Television and Radio Artists." Union representing professional actors, dancers, singers, and broadcasters. Provides news, contracts, performance rates covering all mediums, FAQs, discussion forums, lists of franchis
- http://www.aftra.org/