Mo joined Darwin in 2012 as a registrar. She passed her exams and therefore moved onto become a consultant in 2016, at which point she also took on the role as Deputy Clinical Lead under Jac Naylor. She left the department in June 2017, after five years at the hospital.
Chizzy Akudolu portrayed Mo Effango on Holby City from 2012 to 2017. In late 2016, it was confirmed that she'd be making a guest appearance as the character on Casualty; she made her on-screen appearance in April 2017. She made her departure on Holby City two months later in June.