Riley B. Smith is an American child actor best known for his role as Ralph Dineen, Paige's genius son, in the television drama series Scorpion. Recurring in the first season, he was promoted to series regular for Season 2.
Smith began acting at the age of three when he was cast in the feature film The Back-Up Plan, starring Jennifer Lopez. Soon after, he booked spots for Clear Wire, U.S. Cellular, Netflix, Lowes and a national campaign for DirecTV.
His television series credits include guest roles in The Middle and Hot in Cleveland. Additionally, he does voiceover work for many projects, including Clarence on the Cartoon Network.
His additional feature film credits include American Sniper.
Smith was born on 2 September in West Hills, California. He is not to be confused with actor Riley Smith, whose middle initial is also a B.