Jamie Bell finds fatherhood can be ''monotonous''.

The 'Fantastic Four' actor has a two-year-old son with estranged wife Evan Rachel Wood and though he hates missing out on parts of his little boy's life when he is in the care of the actress, he also struggles to find ways to entertain the youngster.

He said: ''We share custody of our son, which is working out well. Of course, there are now going to be elements of his life which I potentially won't see and be part of. and that's horrible.

''On the other hand, during the time I do see him, it can be quite monotonous - trying to come up with places to go with him and things to do with him when we've been to the park 15 million times I've thrown that ball 20,000 times.

''I'm not really patient and would rather do something different every day. But then, it's also incredibly rewarding and I'm having a great time.''

The 29-year-old actor thinks his life now is ''crazy'' and he finds being a single father makes him feel like a character in a comedy show.

He told HELLO! magazine: ''I always kind of have to stop and check myself because sometimes I think, 'This is my life now? This is crazy.'

''I never anticipated this part, especially being a single father, which is an interesting dynamic. I Always feel like I'm living my life in a sitcom.''