No. Michael Sheen is Welsh whilst Charlie is American and was actually born Carlos Irwin Estevez.
Martin Sheen is Charlie Sheen's father.
Charlie Sheen is Martin Sheen's son
Martin is Charlie's father.
They are brothers. Not even from different marriages with only one parent in common. They have both the same mother and father. Martin Sheen was born as Ramón Gerardo Antonio Estévez and took the...