Matt LeBlanc as Adam Burns: The patriarch of the Burns household. Along with his brother, Don, he owns Burns Brothers Construction. Liza Snyder as Andi Burns: The matriarch of the Burns household. As the series started, Andi went back to work as a medical lab technician. Grace Kaufman as Kate Burns: The eldest Burns child. At the start of the series, Kate is 13 - years - old. She is the sassy, rebellious child, who is often embarrassed by her parents. She 's now 15 in season 2. Hala Finley as Emme Burns: The youngest child in the Burns family, who is 5 - years - old at the start of the series. Emme is the younger, innocent child, who often knows her parents will never let her get away with a lot. She is 6 - years old as of season 2. Matthew McCann as Teddy Burns: The middle child in the Burns family, who is 12 - years - old at the start of the series. Teddy is a very dimwitted child, whose intelligence is often ridiculed by the other characters, including his parents. Adam states that Teddy has his Uncle Don 's intelligence. Jessica Chaffin as Marie Faldonado (episodes 1 -- 13): One of Adam 's fellow room parents, who is a promiscuous divorcee with children in both Emme and Kate 's classes. After episode thirteen, Marie is never seen or mentioned again. Matt Cook as Lowell: The other room parent and the Burns ' friend. Lowell is a stay - at - home dad who relies on statistics and experts to help parent his children. In "The Three Amigos '', he begins working with Adam and Don as their tech specialist after helping them land a lucrative job with a video presentation he created. Diana - Maria Riva as Mrs. Rodriguez (season 1): Emme 's kindergarten teacher and Adam 's enemy. Kevin Nealon as Don Burns: Adam 's older brother, who co-owns Burns Brothers Construction alongside Adam. It is mentioned in "The Three Amigos '' that Don handles sales for the business. He is very dim - witted like his nephew Teddy. He is married to Marcy, and together they have a son, Mikey, who is an ex-convict. Stacy Keach as Joe Burns (season 2 -- present; recurring season 1): Adam and Don 's father, who moved his camper into Adam and Andi 's driveway.
who plays the grandpa on man with a plan
Stacy Keach