https://wetv.vip/en/play/sgf24kn8qsmtlvm/c4100oxecup-Are_you_ready_to_meet_Dilraba_%26_Arthur_Chen%3F_%7C_Love_Beyond_the_Grave

The answer is 100% yes. Arthur chen feiyu has been dubbing for all the characters he played since his debut. And diliraba has also dubbed herself for first time in love beyond the grave.

 Diliraba is multi talented and is know for perfect imitation of various iconic characters ( Elsa from frozen in the variety show The Sound) and Chen feiyu is praised for his deep distinctive clear  voice, perfect with minimal dialect. 

Above is a short video of diliraba and chen feiyu interactions as they are done with filming     lbtg and have a funny chat with audiences.