Andrew Sims was a member of staff at MuggleNet but left in August 2011. He is still the lead host of the site's podcast feature, Mugglecast. He regularly podcasts with Laura Thompson, Matt Britton, Jamie Lawrence, Eric Scull, Micah Tannenbaum, Ben Schoen, Elysa Montfort and Mikey Bouchereau.
Andrew left MuggleNet to work full time on his new website, Hypable. Hypable covers a variety of fandoms, one of which is Harry Potter.