Lauren London has joining the cast of ‘Tyler Perry’s Madea’s Big Happy Family.’Â London will joinÂ cast members Bow Wow, Teyana Taylor,Â Loretta Devine and Old Spice pitchman Isaiah Mustafa in the drama/comedy. I saw the play and have to tell yall it was one of the best plays I have ever seen and I think the movie will be great. Mustafa will portray Calvin, a man struggling with his family relationships. Devine and Bow Wow will play his mother-in-law and brother-in-law, respectively. London will play Bow Wow’s girlfriend.