The cast of Think Again - 1981 includes: Johnny Ball as himself
The cast of Think Again - 2011 includes: Vikrant Bharadwaj as Rohan Vinita Rajput as Pooja
The cast of Think Again - 2013 includes: Jay Booton Reece Douglas as Callum Rhys McCoy as Ryan Connor Philipson as Harry Tracy Spencer
The cast of Think It... Do It - 1986 includes: Johnny Ball as himself
The cast of Think - 2011 includes: Julia Bahja as The Young Girl
The cast of Nothing to Think About - 1921 includes: George Bunny
The cast of Think Talk - 2013 includes: Gregg Turkington
The cast of I Sometimes Think of You - 2011 includes: Leta Neustaedter
The cast of Think of a Number - 1978 includes: Johnny Ball as himself
The cast of You Look and You Think - 2010 includes: Viktoria Winge as The Voice
The cast of Stop. Think. Rewind. - 2009 includes: Chase Weaver
The cast of Think Twice - 2006 includes: Twigy Al Salaam as himself
The cast of Think Twice - 1957 includes: Leonard Teale as Himself - Commentator