Here’s a look at some notable birthdays being celebrated today:

Rutger Hauer

Age: 68

Occupation: Actor

Known For: Appearing in films like ‘Blade Runner,’ ‘Sin City,’ ‘Buffy the Vampire Slayer’ and ‘Batman Begins,’ and being a dedicated environmentalist who also founded the Rutger Hauer Starfish Association, an AIDS awareness organization

Mariska Hargitay

Age: 48

Occupation: Actress

Known For: Her Emmy and Golden Globe-winning portrayal of Detective Olivia Benson on ‘Law & Order: Special Victims Unit,’ founding the Joyful Heart Foundation that helps sexually-abused women, and being the daughter of 1950s sex symbol Jayne Mansfield

Richard Dean Anderson

Age: 62

Occupation: Actor

Known For: Playing the creatively inventive title character on ‘MacGyver,’ starring on ‘Stargate SG-1,’ and appearing on ‘Stargate: Atlantis’ and ‘Stargate: Universe

Robin Zander

Age: 59

Occupation: Singer, Songwriter and Musician

Known For: Being the lead singer and rhythm guitarist for the rock band Cheap Trick, known for songs like ‘I Want You To Want Me,’ ‘Surrender,’ ‘Dream Police,’ ‘The Flame’ and ‘Don’t Be Cruel’

Tiffani Thiessen

Age: 38

Occupation: Actress

Known For: Her roles on ‘Saved by the Bell,’ ‘Beverly Hills, 90210′ and ‘Fastlane,’ and her current gig on ‘White Collar’