Actor David Alan Grier (The Carmichael Show (2015) and The Big Sick (2017)); R.Lum.R perform.Actor David Alan Grier (The Carmichael Show (2015) and The Big Sick (2017)); R.Lum.R perform.Actor David Alan Grier (The Carmichael Show (2015) and The Big Sick (2017)); R.Lum.R perform.