Births on January 23

Richard Dean Anderson, American actor, producer, and composer

Richard Dean Anderson (born January 23, 1950) is an American actor and producer. He began his television career in 1976, playing Jeff Webber in the American soap opera series General Hospital, and then rose to prominence as the lead actor in the television series MacGyver (1985–1992). He later appeared in films such as Through the Eyes of a Killer (1992), Pandora's Clock (1996), and Firehouse (1997).

In 1997, Anderson returned to television as the lead actor of the series Stargate SG-1, a spin-off of the 1994 film Stargate, replacing Kurt Russell. He played the lead from 1997 to 2005 and had a recurring role from 2005 to 2007. Since 1997, he has starred in only one film: Stargate: Continuum, released in 2008 as a sequel film after the Stargate SG-1 film The Ark of Truth. He appeared in the follow-up Stargate spin-off series Stargate: Atlantis and Stargate: Universe (reprising his role from SG-1 as Major General and later Lieutenant General Jack O'Neill).