The 58-year-old actor is currently in Los Angeles, US, for the dubbing of the show.
"Stepping into the world of Family Guy #SuperExcited to be a part of the lovably crazy Griffin family @FamilyGuyonFOX Seth MacFarlane's 'Family Guy'," Kapoor posted on twitter.
The actor, who has previously been a part of international projects like Oscar-winning film "Slumdog Millionaire" and hit US TV series "24", thanked the makers for giving him an oppurtunity to be a part of the show.
Kapoor will be next seen in Zoya Akhtar's "Dil Dhadakne Do".