Main • Melanie Alison "Mel" Burke (
Melissa Joan Hart) is a
city councilwoman in
Toledo, Ohio (the youngest in the city's history, as Mel repeatedly brags). She is also a
senator's daughter. Growing up, she was a rebellious, irresponsible party girl, and now she must take care of her niece and nephew after their mother (her sister, Meredith) was arrested for money laundering and their father disappeared to avoid arrest for running a Ponzi scheme. Over the course of season 3, she and Joe start dating in the mid-season episode "
A Decent Proposal", becomes engaged in "
Right Time, Right Place", and marry in the season finale, "
At Last". She runs for Congress in season 4 and learns that she and Joe are having twins. • Joseph Paul "Joe" Longo (
Scott Michael Foster) is Mel's 24-year-old lover, starting with episode 21. He is an independent business entrepreneur who loves bicycling. Their relationship is put on hold when George moves to Italy for business, and later, Mel breaks it off. • Roman Maizes (
Chris Brochu), a nerd and Lennox's boyfriend in the first season. • Russell Burke (
Christopher Rich) is Mel's father, the former Senator of Ohio, who is very indulgent to his grandchildren and tends to undermine Mel's authority with them. He left his wife Monica for a 28-year-old yoga instructor but returns to his wife when Mel informs the yoga instructor that her father had a vasectomy. • Elena Romanov (
Anya Monzikova) is a Russian businesswoman whom Joe marries at the end of the second season. Their marriage ends when she moves back to Russia to testify for an old colleague. • Leo Larbeck (
Joel McKinnon Miller), the friendly contractor who helped Mel and Joe remodel the house in the beginning of the second season. • Jackie (
Christine Lakin), Mel's best friend from college, who is her only other single friend. She plans to get a sperm donor to have a baby without having to marry someone, and Mel unwittingly leads her to purchase Joey's sperm. • Haskell Davis (
Gregg Sulkin), Lennox's boyfriend in the second season. • Aidan Haber (
Cody Linley), the president of the Spirit Committee at Lennox and Ryder's school. Became romantically involved with Lennox in the second season. • Monica Burke (
Rita Rudner), Mel's neurotic mother who gets back together with her husband Russell after Mel ruins his relationship with his mistress by telling her about his vasectomy. • Austin (
Trevor Donovan) is Mel's childhood friend who is back in town. • Noah (
Justin Hartley) Mel's boyfriend in
season 3, who temporarily moves in with her after his apartment floods. • Zander Carlson (
Sterling Knight), Lennox's boyfriend in the third and fourth season. He is also a talented artist, and provides illustrations for Lennox's web series "Cassandra". After a car accident, Zander and Lennox decided to take their relationship to the next level and got engaged in the series finale. • Keira (
Sadie Calvano), Ryder's girlfriend in the third season. • Dani Mancini (
Jada Facer), Joey's long-lost daughter, revealed in late season three. She decided to live with Joey and Mel while her mother goes on tour. After her mother returned, Dani moved back with her, but still keeps in touch with Joey and Mel. • Felicia Mancini (
Brooke Burke), Dani's mother who works as a professional band massager. • Anthony "Tony" Longo (
Matthew Lawrence), Joe's younger brother. Actor Matthew Lawrence and Joey Lawrence are brothers. • Marco (
Kevin Fonteyne) Joey's nephew and Lennox's ex-boyfriend who she dumped when he left for Japan for six months. • McKenna Cederstrom (
Greer Grammer), an aspiring actress whom Lennox and Zander hire for the role of "Cassandra" in their film. She and Zander become romantically involved, until realizing he still loves Lennox. • Noelle (
Hayley Erin), Lennox's friend who develops a crush on Ryder. ==Development and production==