MyDreamNation, an online community of actors, musicians, singers, bands, film makers, directors, producers, writers, and comedians, will hold open calls for at Suffolk University on March 10 and March 31.

MyDreamNation, or MDN, seeks actors, hosts Internet jockeys, musicians and filmmakers for the launch of its new entertainment Web site.

MDN is auditioning students and others who want to showcase their talent in the hope of opening doors and ultimately making their first big hit.

The talent search is open to college students and others in the Greater Boston area, who must be 18 years old or over to participate.

Submissions of content will be accepted on site, or auditions of three-to-five minutes’ duration will be conducted.

The open call will take place from noon to 5 p.m. Saturday, March 10, and Saturday, March 31, 2007, at Suffolk University’s C. Walsh Theatre, 55 Temple St., Boston.