Shekhar Subramaniam / G.One

Shahrukh Khan

PiBi 2 / Ra. One

Arjun Rampal

Sonia Subramanium

Kareena Kapoor

Prateek / Shekhar's Son

Armaan Verma

Khalnayak, the Villainous Villain

Sanjay Dutt

The Damsel in Distress

Priyanka Chopra

Akaashi

Tom Wu

Jenny Nayar

Shahana Goswami

The Baron

Dalip Tahil

Construction worker

James Helder

Iyer

Satish Shah

Taxi Driver

Suresh Menon

Airport Security Guard

Atul Sharma

Billy

Ben Hawkey

The Daddy

Joe Egan

School Teacher

Delnaaz Irani

Airport Goon

Charanpreet Singh

Airport Cop

Shola Adewusi

Mugger

Paul Lowe

Backing Dancer

Georgia Curtis

Chitti / Self

Rajinikanth

Self - Narrator (voice)

Amitabh Bachchan