Ben Stiller as Mike Brady- Widower father with Post-traumatic stress from Afghanistan.
Bradley Steven Perry as Peter Brady- troubled kid with ADHD. Extremely skilled in cooking.
Joey King as Cindy Brady- Girl crippled from polio, but an amazing artist.
Mason Cook as Bobby Brady- Excellent student with mild OCD, obsessed with the paranormal, and a type 1 diabetic.
Kristen Bell as Carol Ann Tyler (Martin) Brady
()-first marriage- Divorcée mother, an overworked news reporter with problems with stress and a recovering alcoholic.
Ross Lynch as Greg Tyler-changes name to Brady a month after the wedding.
Father Unknown-Carol married her first husband 2 years later. Diagnosed with low latent inhibition, he has a condition in which his brain is more open to incoming stimuli in the surrounding environment. As a result of this condition, he is unable to block out periphery information and instead processes every aspect and detail of any given stimulus. This, combined with a high IQ, theoretically makes him a genius.
Olivia Holt as Marcia Martin- Changes name to Brady at the end of season 1.
Gifted dancer, but is bulimic.
Peyton List as Jan Martin- also changes name to Brady. she is obsessed with current fashion, and also has Bipolar disorder.
Joan Cusack as Alice Nelson- The Brady's housekeeper, a retired nurse and has a dysfunctional relationship with her son (whom is never seen, though she has long phone conversations with him).
Jon Voight as Sam Franklin-The local butcher and Alice's boyfriend.