Fozzie Bear is getting a sister.

Disney Junior is introducing Rozzie, the newly adopted sister of Fozzie, in season three of Muppet Babies, which debuts at 5 p.m. ET on Monday, Jan. 4 on Disney Junior and on DisneyNOW.

In the season three premiere, Fozzie shares the news that his family is adopting a little sister, and he's worried that he doesn't have what it takes to be a big brother. Fozzie's friends use their imaginations to enroll him into "Rizzo's Big Bruddah School."

Rozzie is voiced by Charlie Townsend (T.O.T.S.).

The reimagined, CG-animated Muppet Babies, which chronicles the playroom antics of a young Kermit the Frog, Piggy, Fozzie Bear, Gonzo, Animal and Summer Penguin, is Disney Channel's No. 1 series with kids 2-5.

Based on the original series, Muppet Babies is executive produced by Tom Warburton. Matt Danner serves as co-executive producer and supervising director for season three. This year, Danner won an Emmy for best performer in a preschool animated program for voicing Kermit, Rowlf, Mr. Waldorf, Beaker and Chef.

Chris Moreno is co-producer and art director, and Robyn Brown is co-producer and story editor.

In addition to Danner, the series voice cast includes Jenny Slate as Miss Nanny, Melanie Harrison as Piggy, Dee Bradley Baker as Animal, Eric Bauza as Fozzie, Jessica DiCicco as Summer and Emmy winner Ben Diskin as Gonzo.

The series is a production of OddBot Inc. in association with Disney Junior and The Muppets Studio.