Fiona
知名演員蜜妮卓芙飾演本劇當中窮困，容易緊張，神經兮兮的單親媽媽，帶著11歲大的兒子(Benjamin Stockham飾)搬到新住處，和Will(David Walton飾)成為鄰居，意外破壞了Will的理想完美生活。不管她接下什麼角色，她都能讓其發光發熱，帶有屬於卓芙自己的味道。成名代表作為1995年和克里斯·奧唐納一同演出的電影《他們愛的故事》，因為出色的演技而備受肯定。因演出由葛斯·范·桑所執導的奧斯卡金獎電影《心靈捕手》而獲得奧斯卡和演員工會獎最佳女配角提名。
Minnie Driver stars as Fiona, a needy, highly strung single mom to her 11-year-old son Marcus (Benjamin Stockham) who moves in next door to Will (David Walton) and manages to disrupt his perfect world in NBC's comedy "About a Boy." Audiences may not know where Driver's next character calls home, but they can be sure that no matter where it is, British-born Driver will make her authentic. Driver first came to the attention of audiences and critics in 1995 for her critically acclaimed performance in "Circle of Friends," in which she starred with Chris O'Donnell. She went on to earn Oscar and Screen Actors Guild nominations for supporting actress in the Oscar-winning film "Good Will Hunting," directed by Gus Van Sant.
Marcus
Benjamin Stockham出演本劇當中個性有點古怪可愛的11歲小男生，跟著媽媽Fiona(Minnie Driver飾演)搬到新地方，和Will(David Walton飾)成為鄰居，意外破壞了他原本理想的完美生活。出生地是加州的拉米薩，現在住在鄰近的桑蒂，從小就開始演戲，獲得外界肯定。 從一開始第一個試鏡，在電影《死亡直播》演出小角色，他就因為自身對表演的熱誠，讓導演印象深刻。
Benjamin Stockham stars as Marcus, the oddly charming 11-year-old son of Fiona (Minnie Driver), who moves in next door to Will (David Walton) and manages to completely disrupt his perfect world in NBC's comedy "About a Boy." Born in La Mesa, California and raised in nearby Santee, Stockham's venture into the acting world brought him success early on. From his very first audition for the feature film "Quarantine," in which he earned a small but memorable role, Stockham impressed the director with his drive and desire to work.
Will
David Walton在本劇中演出Will Freeman一角。波士頓出身，Walton高中就開始演戲，但正式的訓練是從就讀波士頓大學開始。他曾在演員中心和英美戲劇學會就讀。曾因演出NBC的影集《半路情緣》和Amanda Peet演對手戲而受到好評，他扮演一個試著克服賭癮的萬人迷，和個性完全相反的女生(Amanda)，兩人之間所產生的化學變化引人入勝。包括紐約時報和每日綜藝都盛讚其喜劇功力和迷人魅力。
David Walton stars as Will Freeman, who lives a charmed existence on NBC's comedy "About a Boy." A Boston native, Walton started acting in high school but began his formal training at Brown University. He also studied at the Actor's Center as well as the British American Drama Academy. Walton received great reviews for his star-making turn opposite Amanda Peet in NBC's comedy "Bent," about a recovering gambling addict and womanizer (Walton) and his polar opposite (Peet). Publications from the New York Times to Daily Variety heralded his comedic timing and leading-man charisma.